This does several closely related things:
- Move the code from the drivers into the SoundFont loader, which
de-duplicates it.
- Sort of explain the weird "recalculate address offset" feature. Note
that I don't think it actually makes any sense - the calling user
space code should do that. The background is certainly that the source
data (the SoundFont format) uses pointers into a single wave block
(and the API allows doing the same for on-board ROM), but the API
expects the wave data from user space to be pre-chopped into
individual patches anyway.
- Make sure that the specified offsets actually lie within the supplied
wave data. Note that we don't validate ROM offsets, so one can play
back anything within the sound card's address space.
- In load_guspatch(), don't call the sample_new callback anymore when
the patch size is zero, as was already the case in load_data(). The
callbacks would instantly return in that case anyway; these checks are
now removed.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Message-ID: <20240406064830.1029573-7-oswald.buddenhagen@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
wavefront_fx.c utilizes memdup_user() to copy a userspace array. This
does not check for an overflow.
Use the new wrapper memdup_array_user() to copy the array more safely.
Suggested-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Link: https://lore.kernel.org/r/20231102190309.50891-2-pstanner@redhat.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The filling of card->longname can be gracefully truncated, as it's
only informative. Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.
Link: https://lore.kernel.org/r/20230915091313.5988-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The filling of card->longname can be gracefully truncated, as it's
only informative. Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.
Link: https://lore.kernel.org/r/20230915091313.5988-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The filling of card->longname can be gracefully truncated, as it's
only informative. Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.
Link: https://lore.kernel.org/r/20230915082802.28684-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The filling of card->longname can be gracefully truncated, as it's
only informative. Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.
Link: https://lore.kernel.org/r/20230915082802.28684-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The filling of card->longname can be gracefully truncated, as it's
only informative. Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.
Link: https://lore.kernel.org/r/20230915082802.28684-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The warning with -Wformat-truncation at sscape_upload_microcode() is
false-positive; the version number can be only a single digit, hence
fitting with the given string size.
For suppressing the warning, replace snprintf() with scnprintf().
As stated in the above, truncation doesn't matter.
Link: https://lore.kernel.org/r/20230915082802.28684-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
While rewriting the code from sockptr_t to iov_iter during the
development, I forgot to replace one place in emu8000-pcm code. As
it's in the disabled area (with ifdef), it's never built and
overlooked. Replace with the proper argument NULL.
Fixes: 9d0fdc602d ("ALSA: emu8000: Convert to generic PCM copy ops")
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Closes: https://lore.kernel.org/r/20230902053646.GK3390869@ZenIV
Link: https://lore.kernel.org/r/20230902061044.19366-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the SB Emu8000 driver code to use the new unified
PCM copy callback. The conversion is a bit complicated because of
many open code in emu8000_pcm.c. GET_VAL() and LOOP_WRITE() macros
were rewritten / simplified with copy_from_iter(). As
copy_from_iter() updates the internal offset value, we can drop the
corresponding part, too.
Link: https://lore.kernel.org/r/20230815190136.8987-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the GUS driver code to use the new unified PCM
copy callback. It's a straightforward conversion from *_user() to
*_iter() variants.
Note that copy_from/to_iter() returns the copied bytes, hence the
error condition is adjusted accordingly.
Link: https://lore.kernel.org/r/20230815190136.8987-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
So far, snd_ctl_remove() requires its caller to take
card->controls_rwsem manually before the call for avoiding possible
races. However, many callers don't care and miss the locking.
Basically it's cumbersome and error-prone to enforce it to each
caller. Moreover, card->controls_rwsem is a field that should be used
only by internal or proper helpers, and it's not to be touched at
random external places.
This patch is an attempt to make those calls more consistent: now
snd_ctl_remove() takes the card->controls_rwsem internally, just like
other API functions for kctls. Since a few callers already take the
controls_rwsem locks, the patch removes those locks at the same time,
too.
Link: https://lore.kernel.org/r/20230718141304.1032-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
GUS driver replaces the kctl->id.index after assigning the kctl via
snd_ctl_add(). This doesn't work any longer with the new Xarray
lookup change. It has to be set before snd_ctl_add() call instead.
Fixes: c27e1efb61 ("ALSA: control: Use xarray for faster lookups")
Cc: <stable@vger.kernel.org>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230606093855.14685-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230522105049.1467313-33-schnelle@linux.ibm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Use DIV_ROUND_UP() instead of open-coding it, which intents and makes
it more clear what is going on for the casual reviewer.
The Coccinelle references Commit e4d8aef214 ("ALSA: usb: Use
DIV_ROUND_UP() instead of open-coding it").
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20220927141110.18033-1-shangxiaojing@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Return the value inb() directly instead of storing it in another redundant
variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220920064605.215318-1-ye.xingchen@zte.com.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pointer end is being re-assigned the same value as it was initialized
with in the previous statement. The re-assignment is redundant and
can be removed.
Cleans up clang scan-build warning:
sound/isa/wavefront/wavefront_synth.c:582:17: warning: Value stored
to 'end' during its initialization is never read
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220629102744.139673-1-colin.i.king@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
. correctly set up ZERO_PAGE pointer
. drop ISA_DMA_API support
. fix comment typos
. fixes for undefined symbols
. remove unused code and variables
. elf-fdpic loader support for m68k
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Merge tag 'm68knommu-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
"A collection of changes to add elf-fdpic loader support for m68k.
Also a collection of various fixes. They include typo corrections,
undefined symbol compilation fixes, removal of the ISA_DMA_API support
and removal of unused code.
Summary:
- correctly set up ZERO_PAGE pointer
- drop ISA_DMA_API support
- fix comment typos
- fixes for undefined symbols
- remove unused code and variables
- elf-fdpic loader support for m68k"
* tag 'm68knommu-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix 68000 CPU link with no platform selected
m68k: removed unused "mach_get_ss"
m68knommu: fix undefined reference to `mach_get_rtc_pll'
m68knommu: fix undefined reference to `_init_sp'
m68knommu: allow elf_fdpic loader to be selected
m68knommu: add definitions to support elf_fdpic program loader
m68knommu: implement minimal regset support
m68knommu: use asm-generic/mmu.h for nommu setups
m68k: fix typos in comments
m68k: coldfire: drop ISA_DMA_API support
m68knommu: set ZERO_PAGE() to the allocated zeroed page
After a build regression report, I took a look at possible users of
CONFIG_ISA_DMA_API on m68k and found none, which Greg confirmed. The
CONFIG_GENERIC_ISA_DMA option in turn is only needed to implement
ISA_DMA_API, and is clearly not used on the platforms with ISA support.
The CONFIG_ISA support for AMIGA_PCMCIA is probably also unneeded,
but this is less clear. Unlike other PCMCIA implementations, this one
does not use the drivers/pcmcia subsystem at all and just supports
the "apne" network driver. When it was first added, one could use
ISA drivers on it as well, but this probably broke at some point.
With no reason to keep this, let's just drop the corresponding files
and prevent the remaining ISA drivers that use this from getting built.
The remaining definitions in asm/dma.h are used for PCI support.
Link: https://lore.kernel.org/lkml/9e5ee1c3-ca80-f343-a1f5-66f3dd1c0727@linux-m68k.org/
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
The antient ISA wavefront driver reads its sample patch data (uploaded
over an ioctl) via __get_user() with no good reason; likely just for
some performance optimizations in the past. Let's change this to the
standard get_user() and the error check for handling the fault case
properly.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220510103626.16635-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature. Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().
This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.
Fixes: 111601ff76 ("ALSA: sc6000: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature. Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().
This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.
Fixes: 35a245ec06 ("ALSA: galaxy: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The bug is here:
err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
The list iterator value 'cdev' will *always* be set and non-NULL
by list_for_each_entry(), so it is incorrect to assume that the
iterator value will be NULL if the list is empty or no element
is found.
To fix the bug, use a new variable 'iter' as the list iterator,
while use the original variable 'cdev' as a dedicated pointer
to point to the found element. And snd_card_cs423x_pnp() itself
has NULL check for cdev.
Cc: stable@vger.kernel.org
Fixes: c2b73d1458 ("ALSA: cs4236: cs4232 and cs4236 driver merge to solve PnP BIOS detection")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327060822.4735-1-xiam0nd.tong@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When snd_gf1_mem_xalloc() returns NULL, the current code still leaves
the formerly allocated block.name string but returns an error
immediately. This patch does code-refactoring to move the kstrdup()
call itself into snd_gf1_mem_xalloc() and deals with the resource free
in the helper code by itself for fixing those memory leaks.
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20211213132444.22385-2-tiwai@suse.de
Link: https://lore.kernel.org/r/20211213141512.27359-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_gf1_mem_xalloc() returns NULL incorrectly when the memory chunk is
allocated in the middle of the chain. This patch corrects the return
value to treat it properly.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20211213132444.22385-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
kstrdup() returns NULL when some internal memory errors happen, it is
better to check the return value of it. Otherwise, we may not to be able
to catch some memory errors in time.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Link: https://lore.kernel.org/r/tencent_1E3950293AC22395ACFE99404C985D738309@qq.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Link: https://lore.kernel.org/r/20211024104611.9919-1-cyeaa@connect.ust.hk
Signed-off-by: Takashi Iwai <tiwai@suse.de>
On m68k, compiling drivers under SND_ISA causes build errors:
../sound/core/isadma.c: In function 'snd_dma_program':
../sound/core/isadma.c:33:17: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
33 | flags = claim_dma_lock();
| ^~~~~~~~~~~~~~
../sound/core/isadma.c:41:9: error: implicit declaration of function 'release_dma_lock' [-Werror=implicit-function-declaration]
41 | release_dma_lock(flags);
| ^~~~~~~~~~~~~~~~
../sound/isa/sb/sb16_main.c: In function 'snd_sb16_playback_prepare':
../sound/isa/sb/sb16_main.c:253:72: error: 'DMA_AUTOINIT' undeclared (first use in this function)
253 | snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
| ^~~~~~~~~~~~
../sound/isa/sb/sb16_main.c:253:72: note: each undeclared identifier is reported only once for each function it appears in
../sound/isa/sb/sb16_main.c: In function 'snd_sb16_capture_prepare':
../sound/isa/sb/sb16_main.c:322:71: error: 'DMA_AUTOINIT' undeclared (first use in this function)
322 | snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
| ^~~~~~~~~~~~
and more...
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211016062602.3588-1-rdunlap@infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The legacy ISA probe tries to probe the card repeatedly, and this
would conflict with the refactoring using devres. Put the card
creation out of the loop and only probe GUS object repeatedly.
Fixes: 5b88da3c80 ("ALSA: gus: Allocate resources with device-managed APIs")
Link: https://lore.kernel.org/r/20210907093930.29009-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
GUS card object may be repeatedly probed for the legacy ISA devices,
and the behavior doesn't fit with the devres resource management.
Revert partially back to the classical way for the snd_gus_card
object, so that the repeated calls of snd_gus_create() are allowed.
Fixes: 5b88da3c80 ("ALSA: gus: Allocate resources with device-managed APIs")
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/r/20210907093930.29009-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The old ISA MSND driver basically maps the iomem as the DMA buffer.
For this type of buffer, we have already the standard mmap helper,
snd_pcm_lib_mmap_iomem(). Correct the PCM info, set the DMA address
and use the standard helper for handling the mmap on all architectures
properly.
Link: https://lore.kernel.org/r/20210809140532.11006-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The recent refactoring of es1688 object creation with the use of
devres caused a problem with the non-PnP probe of GUS driver, as it
tries to probe multiple times with different parameters That is, this
object needs the immediate resource release and the devres doesn't fit
for it.
This patch reverts partially the commit for restoring the classic
resource management for es1688 object.
Fixes: 1bb11c1c7f ("ALSA: es1688: Allocate resources with device-managed APIs")
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/r/20210805032513.GA30485@xsang-OptiPlex-9020
Link: https://lore.kernel.org/r/20210805062148.30951-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sc6000 driver tries to allocate an extra pointer for keeping the vport
address and point it over card->private_data. But, this indirect
access is utterly superfluous, and we can keep the vport address
directly in card->private_data instead. This will simply the code and
avoid confusion.
Link: https://lore.kernel.org/r/20210720162837.6026-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Static analysis is warning that the sizeof being used is should be
of *vport and not vport. Although these are the same size it is not
a portable assumption to assume this is true for all cases. Fix this
by using sizeof(*vport).
Addresses-Coverity: ("Sizeof not portable")
Fixes: 111601ff76 ("ALSA: sc6000: Allocate resources with device-managed APIs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210720161707.74197-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Currently the { } braces are missing around an if block causing subsequent
code after the return to become unreachable. Fix this by adding the
missing { }.
Addresses-Coverity: ("Structurally dead code")
Fixes: 2973ee4a5b ("ALSA: opti9xx: Allocate resources with device-managed APIs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210720153741.73230-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA wavefront driver
with devres as a clean up. Each manual resource management is
converted with the corresponding devres helper. The remove callback
became superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-72-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA sscape driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-71-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The cleanup code was moved from
the remove callback to card->private_free, and then the remove
callback became superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-70-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA opl3sa2 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-69-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-68-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA msnd drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-67-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA gus drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-66-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA galaxy drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-65-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA es18xx driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-64-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA es1688 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-63-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cs423x drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-62-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cmi8330 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-61-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cmi8328 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-60-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA azt2320 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-59-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-58-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA adlib driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-57-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA ad1848 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-56-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA sb drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-55-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA wss driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. Since the whole destructor code
could be removed by the conversion, the lowlevel snd_device was
dropped as well.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-54-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA ad1816a driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-53-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
SB16 CSP driver may hit potentially a typical ABBA deadlock in two
code paths:
In snd_sb_csp_stop():
spin_lock_irqsave(&p->chip->mixer_lock, flags);
spin_lock(&p->chip->reg_lock);
In snd_sb_csp_load():
spin_lock_irqsave(&p->chip->reg_lock, flags);
spin_lock(&p->chip->mixer_lock);
Also the similar pattern is seen in snd_sb_csp_start().
Although the practical impact is very small (those states aren't
triggered in the same running state and this happens only on a real
hardware, decades old ISA sound boards -- which must be very difficult
to find nowadays), it's a real scenario and has to be fixed.
This patch addresses those deadlocks by splitting the locks in
snd_sb_csp_start() and snd_sb_csp_stop() for avoiding the nested
locks.
Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/7b0fcdaf-cd4f-4728-2eae-48c151a92e10@gmail.com
Link: https://lore.kernel.org/r/20210716132723.13216-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When 'SB_HW_16' check fails, the error code -ENODEV instead of 0 should be
returned, which is the same as that returned when 'WSS_HW_CMI8330' check
fails.
Fixes: 43bcd973d6 ("[ALSA] Add snd_card_set_generic_dev() call to ISA drivers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210707074051.2663-1-thunder.leizhen@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A final batch of fixes for v5.13, this is larger than I'd like due to
the fixes for a series of suspend issues that Intel turned up in their
testing this week.
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Merge tag 'asoc-fix-v5.13-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Fixes for v5.13
A final batch of fixes for v5.13, this is larger than I'd like due to
the fixes for a series of suspend issues that Intel turned up in their
testing this week.
ISA ES1688 and WSS driver code contains a few assignments in if
condition, which is a bad coding style that may confuse readers and
occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA AZT2320 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA ALS100 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA CMI8330 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA ES18xx driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA OPL3SA2 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA Opti9xx driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA CS423x driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA WaveFront driver code contains lots of assignments in if
condition, which is a bad coding style that may confuse readers and
occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA AD1816A driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA GUS driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_sb_qsound_destroy() contains the calls of removing the previously
created mixer controls, but it doesn't clear the pointers. As
snd_sb_qsound_destroy() itself may be repeatedly called via ioctl,
this could lead to double-free potentially.
Fix it by clearing the struct fields properly afterwards.
Link: https://lore.kernel.org/r/20210608140540.17885-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The handling of snd_ctl_new1() and snd_ctl_add() can be sometimes
tricky, as snd_ctl_add() automatically removes the passed object at
its error path. The recent fix addressed an overlooked issue that is
relevant with that in SB driver code, and it can be a bit more
simplified by assigning to a temporary variable, i.e. storing to the
struct field only after the creation succeeds.
Link: https://lore.kernel.org/r/20210608140540.17885-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A lot of code for SB drivers is in a legacy style with assignment in
if condition. This also made harder to catch some bugs (e.g. the
commit 1c98f57440 "ALSA: emu8000: Fix a use after free in
snd_emu8000_create_mixer").
This patch fixes the coding style. All are rather simple conversions
and there should be no functional changes.
(The changes in snd_emu8000_new() for hw->res_port1, 2 and 3 are
slightly different from the older ones, but this shouldn't matter
much in practice.)
Link: https://lore.kernel.org/r/20210608140540.17885-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix smatch warning:
sound/isa/gus/gus_main.c:396 snd_gus_check_version() error:
strcpy() 'card->longname' too large for 'card->shortname' (80 vs 32)
Even if this is not a real bug since the longest length of card->longname
now is 31, replace strcpy() with strscpy() in order to avoid possible
future mistake.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210514070507.16600-1-yuehaibing@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The field "fm_res" of "struct snd_sb8" is never used/dereferenced
throughout the sb8.c code. Therefore there is no need for any null value
check after the "request_region()".
Add a comment note to make developers know about this and prevent any
"NULL check" patches on this part of code.
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Atul Gopinathan <atulgopinathan@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit dcd0feac9b.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
The original commit message for this change was incorrect as the code
path can never result in a NULL dereference, alluding to the fact that
whatever tool was used to "find this" is broken. It's just an optional
resource reservation, so removing this check is fine.
Cc: Kangjie Lu <kjlu@umn.edu>
Acked-by: Takashi Iwai <tiwai@suse.de>
Fixes: dcd0feac9b ("ALSA: sb8: add a check for request_region")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-35-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 0f25e000cb.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
The original commit did nothing if there was an error, except to print
out a message, which is pointless. So remove the commit as it gives a
"false sense of doing something".
Cc: Kangjie Lu <kjlu@umn.edu>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210503115736.2104747-33-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit beae77170c.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It is safe to ignore this error as the
mixer element is optional, and the driver is very legacy.
Cc: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210503115736.2104747-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In snd_sb_qsound_build, snd_ctl_add(..,p->qsound_switch...) and
snd_ctl_add(..,p->qsound_space..) are called. But the second
arguments of snd_ctl_add() could be freed via snd_ctl_add_replace()
->snd_ctl_free_one(). After the error code is returned,
snd_sb_qsound_destroy(p) is called in __error branch.
But in snd_sb_qsound_destroy(), the freed p->qsound_switch and
p->qsound_space are still used by snd_ctl_remove().
My patch set p->qsound_switch and p->qsound_space to NULL if
snd_ctl_add() failed to avoid the uaf bugs. But these codes need
to further be improved with the code style.
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210426145541.8070-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Our code analyzer reported a uaf.
In snd_emu8000_create_mixer, the callee snd_ctl_add(..,emu->controls[i])
calls snd_ctl_add_replace(.., kcontrol,..). Inside snd_ctl_add_replace(),
if error happens, kcontrol will be freed by snd_ctl_free_one(kcontrol).
Then emu->controls[i] points to a freed memory, and the execution comes
to __error branch of snd_emu8000_create_mixer. The freed emu->controls[i]
is used in snd_ctl_remove(card, emu->controls[i]).
My patch set emu->controls[i] to NULL if snd_ctl_add() failed to avoid
the uaf.
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210426131129.4796-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was
implemented. We can safely remove it, because the kernel has grown
to have many more reliable mechanisms to determine if device is
supported or not.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The driver core ignores the return value of the remove callback, so
don't give isa drivers the chance to provide a value.
Adapt all isa_drivers with a remove callbacks accordingly; they all
return 0 unconditionally anyhow.
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/net/can/sja1000/tscan1.c
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for drivers/i2c/
Reviewed-by: Takashi Iway <tiwai@suse.de> # for sound/
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for drivers/media/
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210122092449.426097-4-uwe@kleine-koenig.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
strlcpy is deprecated. see: Documentation/process/deprecated.rst
Change the calls that do not use the strlcpy return value to the
preferred strscpy.
Done with cocci script:
@@
expression e1, e2, e3;
@@
- strlcpy(
+ strscpy(
e1, e2, e3);
This cocci script leaves the instances where the return value is
used unchanged.
After this patch, sound/ has 3 uses of strlcpy() that need to be
manually inspected for conversion and changed one day.
$ git grep -w strlcpy sound/
sound/usb/card.c: len = strlcpy(card->longname, s, sizeof(card->longname));
sound/usb/mixer.c: return strlcpy(buf, p->name, buflen);
sound/usb/mixer.c: return strlcpy(buf, p->names[index], buflen);
Miscellenea:
o Remove trailing whitespace in conversion of sound/core/hwdep.c
Link: https://lore.kernel.org/lkml/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/22b393d1790bb268769d0bab7bacf0866dcb0c14.camel@perches.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A collection of small fixes over several drivers, but all are driver-
specific and nothing looks scary. Slightly large changes are seen in
ASoC qcom driver for the bugs that were revealed by the recent ASoC
core change to report the invalid register access errors. Also ASoC
fsl got a slight intensive change for the distortion fix. Others are
only trivial fixes or device-specific quirks.
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Merge tag 'sound-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes over several drivers, but all are driver-
specific and nothing looks scary.
Slightly large changes are seen in ASoC qcom driver for the bugs that
were revealed by the recent ASoC core change to report the invalid
register access errors. Also ASoC fsl got a slight intensive change
for the distortion fix.
Others are only trivial fixes or device-specific quirks"
* tag 'sound-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: hda: avoid reset of sdo_limit
ALSA: hda/realtek: Add quirk for Samsung Galaxy Book Ion
ALSA: usb-audio: ignore broken processing/extension unit
ASoC: intel: Fix memleak in sst_media_open
ASoC: wm8994: Avoid attempts to read unreadable registers
ASoC: msm8916-wcd-analog: fix register Interrupt offset
ASoC: wm8994: Prevent access to invalid VU register bits on WM1811
ALSA: hda/realtek: Add model alc298-samsung-headphone
ALSA: usb-audio: Update documentation comment for MS2109 quirk
ALSA: isa: fix spelling mistakes in the comments
ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1)
ALSA: hda/realtek: Add quirk for Samsung Galaxy Flex Book
ASoC: q6routing: add dummy register read/write function
ASoC: q6afe-dai: mark all widgets registers as SND_SOC_NOPM
ASoC: Make soc_component_read() returning an error code again
ASoC: amd: Replacing component->name with codec_dai->name.
ASoC: fsl: Fix unused variable warning
ASoC: tegra: tegra210_i2s: Fix compile warning with CONFIG_PM=n
ASoC: tegra: tegra210_dmic: Fix compile warning with CONFIG_PM=n
ASoC: tegra: tegra210_ahub: Fix compile warning with CONFIG_PM=n
...
This became wide and scattered updates all over the sound tree as
diffstat shows: lots of (still ongoing) refactoring works in ASoC,
fixes and cleanups caught by static analysis, inclusive term
conversions as well as lots of new drivers. Below are highlights:
ASoC core:
* API cleanups and conversions to the unified mute_stream() call
* Simplify I/O helper functions
* Use helper macros to retrieve RTD from substreams
ASoC drivers:
* Lots of fixes and cleanups in Intel ASoC drivers
* Lots of new stuff: Freescale MQS and i.MX6sx, Intel KeemBay I2S,
Maxim MAX98360A and MAX98373 SoundWire, various Mediatek boards,
nVidia Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries
boards, TI J721e EVM
ALSA core:
* Minor code refacotring for SG-buffer handling
HD-audio:
* Generalization of mute-LED handling with LED classdev
* Intel silent stream support for HDMI
* Device-specific fixes: CA0132, Loongson-3
Others:
* Usual USB- and HD-audio quirks for various devices
* Fixes for echoaudio DMA position handling
* Various documents and trivial fixes for sparse warnings
* Conversion to adapt inclusive terms
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Merge tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This became wide and scattered updates all over the sound tree as
diffstat shows: lots of (still ongoing) refactoring works in ASoC,
fixes and cleanups caught by static analysis, inclusive term
conversions as well as lots of new drivers. Below are highlights:
ASoC core:
- API cleanups and conversions to the unified mute_stream() call
- Simplify I/O helper functions
- Use helper macros to retrieve RTD from substreams
ASoC drivers:
- Lots of fixes and cleanups in Intel ASoC drivers
- Lots of new stuff: Freescale MQS and i.MX6sx, Intel KeemBay I2S,
Maxim MAX98360A and MAX98373 SoundWire, various Mediatek boards,
nVidia Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries
boards, TI J721e EVM
ALSA core:
- Minor code refacotring for SG-buffer handling
HD-audio:
- Generalization of mute-LED handling with LED classdev
- Intel silent stream support for HDMI
- Device-specific fixes: CA0132, Loongson-3
Others:
- Usual USB- and HD-audio quirks for various devices
- Fixes for echoaudio DMA position handling
- Various documents and trivial fixes for sparse warnings
- Conversion to adopt inclusive terms"
* tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (479 commits)
ALSA: pci: delete repeated words in comments
ALSA: isa: delete repeated words in comments
ALSA: hda/tegra: Add 100us dma stop delay
ALSA: hda: Add dma stop delay variable
ASoC: hda/tegra: Set buffer alignment to 128 bytes
ALSA: seq: oss: Serialize ioctls
ALSA: hda/hdmi: Add quirk to force connectivity
ALSA: usb-audio: add startech usb audio dock name
ALSA: usb-audio: Add support for Lenovo ThinkStation P620
Revert "ALSA: hda: call runtime_allow() for all hda controllers"
ALSA: hda/ca0132 - Fix AE-5 microphone selection commands.
ALSA: hda/ca0132 - Add new quirk ID for Recon3D.
ALSA: hda/ca0132 - Fix ZxR Headphone gain control get value.
ALSA: hda/realtek: Add alc269/alc662 pin-tables for Loongson-3 laptops
ALSA: docs: fix typo
ALSA: doc: use correct config variable name
ASoC: core: Two step component registration
ASoC: core: Simplify snd_soc_component_initialize declaration
ASoC: core: Relocate and expose snd_soc_component_initialize
ASoC: sh: Replace 'select' DMADEVICES 'with depends on'
...
Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.
In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:
git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
xargs perl -pi -e \
's/\buninitialized_var\(([^\)]+)\)/\1/g;
s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'
drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.
No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.
[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/
Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
A few places (except for ASoC) are left unconverted for the new
fallthrough pseudo keyword. Now replace them all.
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200709111750.8337-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix W=1 warning by noting variable as __always_unused.
sound/isa/gus/gus_uart.c: In function ‘snd_gf1_interrupt_midi_in’:
sound/isa/gus/gus_uart.c:16:22: warning: variable ‘data’ set but not
used [-Wunused-but-set-variable]
16 | unsigned char stat, data, byte;
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702193604.169059-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_es968_pnp_detect() misses a snd_card_free() in a failed path.
Add the missed function call to fix it.
Fixes: a20971b201 ("ALSA: Merge es1688 and es968 drivers")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200603092459.1424093-1-hslester96@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The "header->number" comes from the ioctl and it needs to be clamped to
prevent out of bounds writes.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200501094011.GA960082@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>
gcc-10 points out a few instances of suspicious integer arithmetic
leading to value truncation:
sound/isa/opti9xx/opti92x-ad1848.c: In function 'snd_opti9xx_configure':
sound/isa/opti9xx/opti92x-ad1848.c:322:43: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_opti9xx_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
322 | (snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/opti92x-ad1848.c:351:3: note: in expansion of macro 'snd_opti9xx_write_mask'
351 | snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
| ^~~~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c: In function 'snd_miro_configure':
sound/isa/opti9xx/miro.c:873:40: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_miro_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
873 | (snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c:1010:3: note: in expansion of macro 'snd_miro_write_mask'
1010 | snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
| ^~~~~~~~~~~~~~~~~~~
These are all harmless here as only the low 8 bit are passed down
anyway. Change the macros to inline functions to make the code
more readable and also avoid the warning.
Strictly speaking those functions also need locking to make the
read/write pair atomic, but it seems unlikely that anyone would
still run into that issue.
Fixes: 1841f613fd ("[ALSA] Add snd-miro driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200429190216.85919-1-arnd@arndb.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
