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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)
commitcf7a50eeb6f462a0b7d1619fcb27a727a2981769
treeae71d7dfc5af77429f9d881d59ab98f08353c170tree | snapshot
parenta90ef69c1f67319ddbba0170767c660c7fb5d4c9commit | diff
V4L/DVB: uvcvideo: Prevent division by 0 when control step value is 0

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>
drivers/media/video/uvc/uvc_ctrl.c diff | blob | history
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