diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-async.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-async.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 8b84fea50c2a..46aebfc75e43 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -22,6 +22,7 @@ #include <media/v4l2-async.h> #include <media/v4l2-device.h> +#include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> static bool match_i2c(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd) @@ -237,6 +238,36 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) } EXPORT_SYMBOL(v4l2_async_notifier_unregister); +void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier) +{ + unsigned int i; + + if (!notifier->max_subdevs) + return; + + for (i = 0; i < notifier->num_subdevs; i++) { + struct v4l2_async_subdev *asd = notifier->subdevs[i]; + + switch (asd->match_type) { + case V4L2_ASYNC_MATCH_FWNODE: + fwnode_handle_put(asd->match.fwnode.fwnode); + break; + default: + WARN_ON_ONCE(true); + break; + } + + kfree(asd); + } + + notifier->max_subdevs = 0; + notifier->num_subdevs = 0; + + kvfree(notifier->subdevs); + notifier->subdevs = NULL; +} +EXPORT_SYMBOL_GPL(v4l2_async_notifier_cleanup); + int v4l2_async_register_subdev(struct v4l2_subdev *sd) { struct v4l2_async_notifier *notifier; |