uvc: Fix race condition on uvc

[PATCH v2 0/2] uvc: Fix race condition on uvc

Ricardo Ribalda posted 2 patches 2 years, 9 months ago

Download series mbox

drivers/media/usb/uvc/uvc_ctrl.c   |  3 +++
drivers/media/usb/uvc/uvc_status.c | 15 +++++++--------
drivers/media/usb/uvc/uvcvideo.h   |  3 ++-
3 files changed, 12 insertions(+), 9 deletions(-)

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[PATCH v2 0/2] uvc: Fix race condition on uvc

Posted by Ricardo Ribalda 2 years, 9 months ago

Make sure that all the async work is finished when we stop the status urb.

To: Yunke Cao <yunkec@chromium.org>
To: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Max Staudt <mstaudt@google.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>

---
Changes in v2:
- Add a patch for not kalloc dev->status
- Redo the logic mechanism, so it also works with suspend (Thanks Yunke!)
- Link to v1: https://lore.kernel.org/r/20221212-uvc-race-v1-0-c52e1783c31d@chromium.org

---
Ricardo Ribalda (2):
      media: uvcvideo: Fix race condition with usb_kill_urb
      media: uvcvideo: Do not alloc dev->status

 drivers/media/usb/uvc/uvc_ctrl.c   |  3 +++
 drivers/media/usb/uvc/uvc_status.c | 15 +++++++--------
 drivers/media/usb/uvc/uvcvideo.h   |  3 ++-
 3 files changed, 12 insertions(+), 9 deletions(-)
---
base-commit: 0ec5a38bf8499f403f81cb81a0e3a60887d1993c
change-id: 20221212-uvc-race-09276ea68bf8

Best regards,
-- 
Ricardo Ribalda <ribalda@chromium.org>