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[media] media: omap3isp: fix a potential NULL deref

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Fix a potential NULL pointer dereference by skipping registration of
external entities in case none are provided.

This is useful at least when testing mere memory-to-memory scenarios.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ohad Ben-Cohen 2011-06-01 13:39:46 -03:00 committed by Mauro Carvalho Chehab
parent 66072d4fa7
commit ca4186f06f
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/omap3isp/isp.c
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@ -1748,7 +1748,7 @@ static int isp_register_entities(struct isp_device *isp)
goto done;
/* Register external entities */
for (subdevs = pdata->subdevs; subdevs->subdevs; ++subdevs) {
for (subdevs = pdata->subdevs; subdevs && subdevs->subdevs; ++subdevs) {
struct v4l2_subdev *sensor;
struct media_entity *input;
unsigned int flags;