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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)
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>

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