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As warned by smatch: drivers/media/usb/uvc/uvc_v4l2.c:911 uvc_ioctl_g_input() error: doing dma on the stack (&i) drivers/media/usb/uvc/uvc_v4l2.c:943 uvc_ioctl_s_input() error: doing dma on the stack (&i) those two functions call uvc_query_ctrl passing a pointer to a data at the DMA stack. those are used to send URBs via usb_control_msg(). Using DMA stack is not supported and should not work anymore on modern Linux versions. So, use a kmalloc'ed buffer. Cc: stable@vger.kernel.org # Kernel 4.9 and upper Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| uvc_ctrl.c | ||
| uvc_debugfs.c | ||
| uvc_driver.c | ||
| uvc_entity.c | ||
| uvc_isight.c | ||
| uvc_metadata.c | ||
| uvc_queue.c | ||
| uvc_status.c | ||
| uvc_v4l2.c | ||
| uvc_video.c | ||
| uvcvideo.h | ||