V4L/DVB (11945): uvcvideo: Don't accept to change the format when buffers are allocated.
authorLaurent Pinchart <laurent.pinchart@skynet.be>
Thu, 4 Jun 2009 12:26:39 +0000 (09:26 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 16 Jun 2009 22:07:30 +0000 (19:07 -0300)
commit23ff6043add670713bbf2f6ee5d520459cfdfae9
treeb275b1baf5e1f9940b27e388784ed999ab1c6e93
parentd732c44c1a4b54e3c59ad92069bc2fd848aca5f3
V4L/DVB (11945): uvcvideo: Don't accept to change the format when buffers are allocated.

Setting a new frame format or size will likely change the buffer size required
to store a complete video frame. To avoid a buffer overflow, don't allow
VIDIOC_S_FMT calls when video buffers are already allocated.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/uvc/uvc_queue.c
drivers/media/video/uvc/uvc_v4l2.c
drivers/media/video/uvc/uvcvideo.h