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path: root/drivers/media/v4l2-core/v4l2-async.c
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Diffstat (limited to 'drivers/media/v4l2-core/v4l2-async.c')
-rw-r--r--drivers/media/v4l2-core/v4l2-async.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index d7e9ffc7aa23..b16b5f4cb91e 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -416,7 +416,8 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd)
/* Unbind all sub-devices in the notifier tree. */
static void
-v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier,
+ bool readd)
{
struct v4l2_subdev *sd, *tmp;
@@ -425,9 +426,11 @@ v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
v4l2_async_find_subdev_notifier(sd);
if (subdev_notifier)
- v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
+ v4l2_async_nf_unbind_all_subdevs(subdev_notifier, true);
v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
+ if (readd)
+ list_add_tail(&sd->asd->list, &notifier->waiting);
v4l2_async_cleanup(sd);
list_move(&sd->async_list, &subdev_list);
@@ -559,7 +562,7 @@ err_unbind:
/*
* On failure, unbind all sub-devices registered through this notifier.
*/
- v4l2_async_nf_unbind_all_subdevs(notifier);
+ v4l2_async_nf_unbind_all_subdevs(notifier, false);
err_unlock:
mutex_unlock(&list_lock);
@@ -609,7 +612,7 @@ __v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)
if (!notifier || (!notifier->v4l2_dev && !notifier->sd))
return;
- v4l2_async_nf_unbind_all_subdevs(notifier);
+ v4l2_async_nf_unbind_all_subdevs(notifier, false);
notifier->sd = NULL;
notifier->v4l2_dev = NULL;
@@ -807,7 +810,7 @@ err_unbind:
*/
subdev_notifier = v4l2_async_find_subdev_notifier(sd);
if (subdev_notifier)
- v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
+ v4l2_async_nf_unbind_all_subdevs(subdev_notifier, false);
if (sd->asd)
v4l2_async_nf_call_unbind(notifier, sd, sd->asd);