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V4L/DVB: uvcvideo: Prevent division by 0 when control step value is 0
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Sun, 25 Apr 2010 19:27:14 +0000 (16:27 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Wed, 19 May 2010 15:58:44 +0000 (12:58 -0300)
The control step values reported by the device are used as a divisor
unchecked, which can result in a division by zero.

Check the step value and make it 1 when null.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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