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[media] v4l2-event: Deny subscribing with a type of V4L2_EVENT_ALL

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Signed-off-by: Hans de Goede <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Acked-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Hans de Goede 2011-10-24 05:03:27 -03:00 • committed by Mauro Carvalho Chehab
commit b36b505965
1 changed files with 3 additions and 0 deletions
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3
drivers/media/video/v4l2-event.c
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@ -215,6 +215,9 @@ int v4l2_event_subscribe(struct v4l2_fh *fh,
unsigned long flags;
unsigned i;
if (sub->type == V4L2_EVENT_ALL)
return -EINVAL;
if (elems < 1)
elems = 1;
if (sub->type == V4L2_EVENT_CTRL) {