diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-12 20:19:20 +0400 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-12 20:19:20 +0400 |
commit | 68556ca1e03d6a35be3b315eba58df2f8176e3a0 (patch) | |
tree | 36a390d29a0d03a59a90c0f223b0d98a80f0f6c3 /drivers/media/video/v4l2-event.c | |
parent | 0604ca48f1689ad06144b81f5c08f297b6edd831 (diff) | |
parent | 8ab30691826fc05efa47c4ffba19b80496bb3a2c (diff) | |
download | linux-68556ca1e03d6a35be3b315eba58df2f8176e3a0.tar.xz |
Merge branch 'mfd/wm8994' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc into for-3.3
Diffstat (limited to 'drivers/media/video/v4l2-event.c')
-rw-r--r-- | drivers/media/video/v4l2-event.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-event.c b/drivers/media/video/v4l2-event.c index 46037f225529..c26ad9637143 100644 --- a/drivers/media/video/v4l2-event.c +++ b/drivers/media/video/v4l2-event.c @@ -216,6 +216,9 @@ 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) { @@ -283,6 +286,7 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, { struct v4l2_subscribed_event *sev; unsigned long flags; + int i; if (sub->type == V4L2_EVENT_ALL) { v4l2_event_unsubscribe_all(fh); @@ -293,8 +297,12 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, sev = v4l2_event_subscribed(fh, sub->type, sub->id); if (sev != NULL) { + /* Remove any pending events for this subscription */ + for (i = 0; i < sev->in_use; i++) { + list_del(&sev->events[sev_pos(sev, i)].list); + fh->navailable--; + } list_del(&sev->list); - sev->fh = NULL; } spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); |