The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Here is the big set of USB and Thunderbolt driver changes for 6.17-rc1.
Lots of little things in here, mostly all small cleanups and updates, no
major new features this development cycle. Stuff included in here is:
- xhci minor tweaks for error handling
- typec minor updates and a driver update
- gadget driver api cleanups
- unused function removals
- unbind memory leak fixes
- a few new device ids added
- a few new devices supported for some drivers
- other minor cleanups and changes
All of these have been in linux-next with no reported issues, with the
leak fixes being in the shortest amount of time, but they are "obviously
correct" :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for
6.17-rc1.
Lots of little things in here, mostly all small cleanups and updates,
no major new features this development cycle. Stuff included in here
is:
- xhci minor tweaks for error handling
- typec minor updates and a driver update
- gadget driver api cleanups
- unused function removals
- unbind memory leak fixes
- a few new device ids added
- a few new devices supported for some drivers
- other minor cleanups and changes
All of these have been in linux-next with no reported issues, with the
leak fixes being in the shortest amount of time, but they are
'obviously correct' :)"
* tag 'usb-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (100 commits)
usb: musb: omap2430: clean up probe error handling
usb: musb: omap2430: fix device leak at unbind
usb: gadget: udc: renesas_usb3: fix device leak at unbind
usb: dwc3: meson-g12a: fix device leaks at unbind
usb: dwc3: imx8mp: fix device leak at unbind
usb: musb: omap2430: enable compile testing
usb: gadget: udc: renesas_usb3: drop unused module alias
usb: xhci: print xhci->xhc_state when queue_command failed
usb: atm: cxacru: Merge cxacru_upload_firmware() into cxacru_heavy_init()
USB: serial: option: add Foxconn T99W709
usb: core: add urb->sgt parameter description
thunderbolt: Fix copy+paste error in match_service_id()
usb: typec: ucsi: Update power_supply on power role change
usb: typec: ucsi: psy: Set current max to 100mA for BC 1.2 and Default
usb: typec: fusb302: cache PD RX state
usb: typec: ucsi: yoga-c630: add DRM dependency
usb: gadget : fix use-after-free in composite_dev_cleanup()
usb: chipidea: imx: Add a missing blank line
usb: gadget: f_uac1: replace scnprintf() with sysfs_emit()
usb: usblp: clean up assignment inside if conditions
...
Here's a new modem device id.
This has been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.17-rc1-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial device id for 6.17-rc1
Here's a new modem device id.
This has been in linux-next with no reported issues.
* tag 'usb-serial-6.17-rc1-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Foxconn T99W709
Here are the USB serial updates for 6.17-rc1, including
- switch to new gpiolib interface that can return errors
All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial updates for 6.17-rc1
Here are the USB serial updates for 6.17-rc1, including
- switch to new gpiolib interface that can return errors
All have been in linux-next with no reported issues.
* tag 'usb-serial-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: cp210x: use new GPIO line value setter callbacks
USB: serial: ftdi_sio: use new GPIO line value setter callbacks
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Merge tag 'v6.16-rc7' into tty-next
We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NDI (Northern Digital Inc.) is introducing a new product called the
EMGUIDE GEMINI that will use an FTDI chip for USB serial communications.
Add the NDI EMGUIDE GEMINI product ID that uses the NDI Vendor ID
rather than the FTDI Vendor ID, unlike older products.
Signed-off-by: Ryan Mann <rmann@ndigital.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This code (tty_get -> vhangup -> tty_put) is repeated on few places.
Introduce a helper similar to tty_port_tty_hangup() (asynchronous) to
handle even vhangup (synchronous).
And use it on those places.
In fact, reuse the tty_port_tty_hangup()'s code and call tty_vhangup()
depending on a new bool parameter.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: David Lin <dtwlin@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250611100319.186924-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move this API to the canonical timer_*() namespace.
[ tglx: Redone against pre rc1 ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
Add new bcd (0x905) to support PL2303GT-2AB (TYPE_HXN).
Add new bcd (0x1005) to support PL2303GC-Q20 (TYPE_HXN).
Signed-off-by: Charles Yeh <charlesyeh522@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
usb_serial_device_match() takes a const pointer, and then decides to
cast it away into a non-const one, which is not a good thing to do
overall. Fix this up by properly setting the pointers to be const to
preserve that attribute.
Fixes: d69d804845 ("driver core: have match() callback in struct bus_type take a const *")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The read urb pointer is dereferenced before checking that it is non-NULL
during open(), but no check is needed as the existence of a bulk in
endpoint is verified during attach() since commit ef079936d3 ("USB:
serial: ti_usb_3410_5052: fix NULL-deref at open").
Drop the bogus read urb sanity check.
Signed-off-by: Johan Hovold <johan@kernel.org>
Add serial support for OWON HDS200 series oscilloscopes and likely
many other pieces of OWON test equipment.
OWON HDS200 series devices host two USB endpoints, designed to
facilitate bidirectional SCPI. SCPI is a predominately ASCII text
protocol for test/measurement equipment. Having a serial/tty interface
for these devices lowers the barrier to entry for anyone trying to
write programs to communicate with them.
The following shows the USB descriptor for the OWON HDS272S running
firmware V5.7.1:
Bus 001 Device 068: ID 5345:1234 Owon PDS6062T Oscilloscope
Negotiated speed: Full Speed (12Mbps)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 [unknown]
bDeviceSubClass 0 [unknown]
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x5345 Owon
idProduct 0x1234 PDS6062T Oscilloscope
bcdDevice 1.00
iManufacturer 1 oscilloscope
iProduct 2 oscilloscope
iSerial 3 oscilloscope
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0029
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 5 Physical Interface Device
bInterfaceSubClass 0 [unknown]
bInterfaceProtocol 0
iInterface 0
** UNRECOGNIZED: 09 21 11 01 00 01 22 5f 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 32
Device Status: 0x0000
(Bus Powered)
OWON appears to be using the same USB Vendor and Product ID for many
of their oscilloscopes. Looking at the discussion about the USB
vendor/product ID, in the link bellow, suggests that this VID/PID is
shared with VDS, SDS, PDS, and now the HDS series oscilloscopes.
Available documentation for these devices seems to indicate that all
use a similar SCPI protocol, some with RS232 options. It is likely that
this same simple serial setup would work correctly for them all.
Link: https://usb-ids.gowdy.us/read/UD/5345/1234
Signed-off-by: Craig Hesling <craig@hesling.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Abacus Electrics makes optical probes for interacting with smart meters
over an optical interface.
At least one version uses an FT232B chip (as detected by ftdi_sio) with
a custom USB PID, which needs to be added to the list to make the device
work in a plug-and-play fashion.
Signed-off-by: Michael Ehrenreich <michideep@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is the big set of USB and Thunderbolt driver updates for 6.15-rc1.
Included in here are:
- Thunderbolt driver and core api updates for new hardware and
features
- usb-storage const array cleanups
- typec driver updates
- dwc3 driver updates
- xhci driver updates and bugfixes
- small USB documentation updates
- usb cdns3 driver updates
- usb gadget driver updates
- other small driver updates and fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver updates for
6.15-rc1. Included in here are:
- Thunderbolt driver and core api updates for new hardware and
features
- usb-storage const array cleanups
- typec driver updates
- dwc3 driver updates
- xhci driver updates and bugfixes
- small USB documentation updates
- usb cdns3 driver updates
- usb gadget driver updates
- other small driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (92 commits)
thunderbolt: Do not add non-active NVM if NVM upgrade is disabled for retimer
thunderbolt: Scan retimers after device router has been enumerated
usb: host: cdns3: forward lost power information to xhci
usb: host: xhci-plat: allow upper layers to signal power loss
usb: xhci: change xhci_resume() parameters to explicit the desired info
usb: cdns3-ti: run HW init at resume() if HW was reset
usb: cdns3-ti: move reg writes to separate function
usb: cdns3: call cdns_power_is_lost() only once in cdns_resume()
usb: cdns3: rename hibernated argument of role->resume() to lost_power
usb: xhci: tegra: rename `runtime` boolean to `is_auto_runtime`
usb: host: xhci-plat: mvebu: use ->quirks instead of ->init_quirk() func
usb: dwc3: Don't use %pK through printk
usb: core: Don't use %pK through printk
usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev()
dt-bindings: usb: qcom,dwc3: Synchronize minItems for interrupts and -names
usb: common: usb-conn-gpio: switch psy_cfg from of_node to fwnode
usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running
usb: xhci: Don't change the status of stalled TDs on failed Stop EP
xhci: Avoid queuing redundant Stop Endpoint command for stalled endpoint
xhci: Handle spurious events on Etron host isoc enpoints
...
The Altera USB Blaster 3, available as both a cable and an on-board
solution, is primarily used for programming and debugging FPGAs.
It interfaces with host software such as Quartus Programmer,
System Console, SignalTap, and Nios Debugger. The device utilizes
either an FT2232 or FT4232 chip.
Enabling the support for various configurations of the on-board
USB Blaster 3 by including the appropriate VID/PID pairs,
allowing it to function as a serial device via ftdi_sio.
Note that this check-in does not include support for the
cable solution, as it does not support UART functionality.
The supported configurations are determined by the
hardware design and include:
1) PID 0x6022, FT2232, 1 JTAG port (Port A) + Port B as UART
2) PID 0x6025, FT4232, 1 JTAG port (Port A) + Port C as UART
3) PID 0x6026, FT4232, 1 JTAG port (Port A) + Port C, D as UART
4) PID 0x6029, FT4232, 1 JTAG port (Port B) + Port C as UART
5) PID 0x602a, FT4232, 1 JTAG port (Port B) + Port C, D as UART
6) PID 0x602c, FT4232, 1 JTAG port (Port A) + Port B as UART
7) PID 0x602d, FT4232, 1 JTAG port (Port A) + Port B, C as UART
8) PID 0x602e, FT4232, 1 JTAG port (Port A) + Port B, C, D as UART
These configurations allow for flexibility in how the USB Blaster 3 is
used, depending on the specific needs of the hardware design.
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
The correct name for FE990 is FE990A so use it in order to avoid
confusion with FE990B.
Cc: stable@vger.kernel.org
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
The device id entries for Telit FN990B ended up matching only on the
interface protocol. While this works, the protocol is qualified by the
interface class (and subclass) which should have been included.
Switch to matching using USB_DEVICE_AND_INTERFACE_INFO() while keeping
the entries sorted also by protocol for consistency.
Link: https://lore.kernel.org/20250227110655.3647028-2-fabio.porcedda@gmail.com/
Cc: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Daniele Palmas <dnlplm@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Drop some defines that have never (really) been used, some of which are
duplicates (the read and write requests) and others which are just bogus
(the ioctl).
Signed-off-by: Johan Hovold <johan@kernel.org>
Several MeiG Smart modems apparently use the same product id, making the
defines even less useful.
Drop them in favour of using comments consistently to make the id table
slightly less unwieldy.
Cc: stable@vger.kernel.org
Acked-by: Chester A. Unal <chester.a.unal@arinc9.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
The correct name for FN990 is FN990A so use it in order to avoid
confusion with FN990B.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Here are the USB-serial updates for 6.14-rc1, including:
- fix a long-standing NULL-deref issue in quatech2
- add support for hardware flow control to ch341
Included is also a related clean up.
All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Merge usb-serial updates from Johan:
USB-serial updates for 6.14-rc1
Here are the USB-serial updates for 6.14-rc1, including:
- fix a long-standing NULL-deref issue in quatech2
- add support for hardware flow control to ch341
Included is also a related clean up.
All have been in linux-next with no reported issues.
* tag 'usb-serial-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()
USB: serial: ch341: use fix-width types consistently
USB: serial: ch341: add hardware flow control RTS/CTS
This patch addresses a null-ptr-deref in qt2_process_read_urb() due to
an incorrect bounds check in the following:
if (newport > serial->num_ports) {
dev_err(&port->dev,
"%s - port change to invalid port: %i\n",
__func__, newport);
break;
}
The condition doesn't account for the valid range of the serial->port
buffer, which is from 0 to serial->num_ports - 1. When newport is equal
to serial->num_ports, the assignment of "port" in the
following code is out-of-bounds and NULL:
serial_priv->current_port = newport;
port = serial->port[serial_priv->current_port];
The fix checks if newport is greater than or equal to serial->num_ports
indicating it is out-of-bounds.
Reported-by: syzbot <syzbot+506479ebf12fe435d01a@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=506479ebf12fe435d01a
Fixes: f7a33e608d ("USB: serial: add quatech2 usb to serial driver")
Cc: <stable@vger.kernel.org> # 3.5
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Use Linux fix-width types consistently and drop a related unnecessary
cast.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This adds support for enabling and disabling RTS/CTS hardware flow
control.
Tested using CH341A and CH340E.
Fixes part of the following bug report:
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197109
Signed-off-by: Lode Willems <me@lodewillems.com>
[ johan: prepare index argument once, drop casts ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is the big set of USB and Thunderbolt changes for 6.13-rc1.
Overall, a pretty slow development cycle, the majority of the work going
into the debugfs interface for the thunderbolt (i.e. USB4) code, to help
with debugging the myrad ways that hardware vendors get their interfaces
messed up. Other than that, here's the highlights:
- thunderbolt changes and additions to debugfs interfaces
- lots of device tree updates for new and old hardware
- UVC configfs gadget updates and new apis for features
- xhci driver updates and fixes
- dwc3 driver updates and fixes
- typec driver updates and fixes
- lots of other small updates and fixes, full details in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt changes for 6.13-rc1.
Overall, a pretty slow development cycle, the majority of the work
going into the debugfs interface for the thunderbolt (i.e. USB4) code,
to help with debugging the myrad ways that hardware vendors get their
interfaces messed up. Other than that, here's the highlights:
- thunderbolt changes and additions to debugfs interfaces
- lots of device tree updates for new and old hardware
- UVC configfs gadget updates and new apis for features
- xhci driver updates and fixes
- dwc3 driver updates and fixes
- typec driver updates and fixes
- lots of other small updates and fixes, full details in the shortlog
All of these have been in linux-next for a while with no reported
problems"
* tag 'usb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (148 commits)
usb: typec: tcpm: Add support for sink-bc12-completion-time-ms DT property
dt-bindings: usb: maxim,max33359: add usage of sink bc12 time property
dt-bindings: connector: Add time property for Sink BC12 detection completion
usb: dwc3: gadget: Remove dwc3_request->needs_extra_trb
usb: dwc3: gadget: Cleanup SG handling
usb: dwc3: gadget: Fix looping of queued SG entries
usb: dwc3: gadget: Fix checking for number of TRBs left
usb: dwc3: ep0: Don't clear ep0 DWC3_EP_TRANSFER_STARTED
Revert "usb: gadget: composite: fix OS descriptors w_value logic"
usb: ehci-spear: fix call balance of sehci clk handling routines
USB: make to_usb_device_driver() use container_of_const()
USB: make to_usb_driver() use container_of_const()
USB: properly lock dynamic id list when showing an id
USB: make single lock for all usb dynamic id lists
drivers/usb/storage: refactor min with min_t
drivers/usb/serial: refactor min with min_t
drivers/usb/musb: refactor min/max with min_t/max_t
drivers/usb/mon: refactor min with min_t
drivers/usb/misc: refactor min with min_t
drivers/usb/host: refactor min/max with min_t/max_t
...
Here are the USB-serial updates for 6.13-rc1, including:
- improved support for quirky pl2303 hxd devices
- make sure ftdi_sio TIOCGSERIAL returns consistent data
Everything has been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.13-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for 6.13-rc1
Here are the USB-serial updates for 6.13-rc1, including:
- improved support for quirky pl2303 hxd devices
- make sure ftdi_sio TIOCGSERIAL returns consistent data
Everything has been in linux-next with no reported issues.
* tag 'usb-serial-6.13-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: ftdi_sio: Fix atomicity violation in get_serial_info()
USB: serial: pl2303: account for deficits of clones
There are a number of places where we accidentally pass in a constant
structure to later cast it off to a dynamic one, and then attempt to
grab a lock on it, which is not a good idea. To help resolve this, move
the dynamic id lock out of the dynamic id structure for the driver and
into one single lock for all USB dynamic ids. As this lock should never
have any real contention (it's only every accessed when a device is
added or removed, which is always serialized) there should not be any
difference except for some memory savings.
Note, this just converts the existing use of the dynamic id lock to the
new static lock, there is one place that is accessing the dynamic id
list without grabbing the lock, that will be fixed up in a follow-on
change.
Cc: Johan Hovold <johan@kernel.org>
Cc: Herve Codina <herve.codina@bootlin.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Grant Grundler <grundler@chromium.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Yajun Deng <yajun.deng@linux.dev>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/2024111322-kindly-finalist-d247@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Our static checker found a bug where set_serial_info() uses a mutex, but
get_serial_info() does not. Fortunately, the impact of this is relatively
minor. It doesn't cause a crash or any other serious issues. However, if a
race condition occurs between set_serial_info() and get_serial_info(),
there is a chance that the data returned by get_serial_info() will be
inconsistent.
Fixes: 3ae36bed3a ("fdti_sio: switch to ->[sg]et_serial()")
Signed-off-by: Qiu-ji Chen <chenqiuji666@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
There are apparently incomplete clones of the HXD type chip in use.
Those return -EPIPE on GET_LINE_REQUEST and BREAK_REQUEST. Avoid
flooding the kernel log with those errors. Detect them during startup
and then use the line_settings cache instead of GET_LINE_REQUEST. Signal
missing break support via -ENOTTY.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
[ johan: fix macro prefix, drop oom error message ]
Signed-off-by: Johan Hovold <johan@kernel.org>
The "dev_dbg(&urb->dev->dev, ..." which happens after usb_free_urb(urb)
is a use after free of the "urb" pointer. Store the "dev" pointer at the
start of the function to avoid this issue.
Fixes: 984f686832 ("USB: serial: io_edgeport.c: remove dbg() usage")
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
