diff mbox series

[2/2] media: v4l: async: Set owner for async sub-devices

Message ID 20240315073125.275501-2-sakari.ailus@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Set sub-device owner field | expand

Commit Message

Sakari Ailus March 15, 2024, 7:31 a.m. UTC 
Set the owner field of the async sub-devices by making
v4l2_async_register_subdev() a macro and obtaining THIS_MODULE that way.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-async.c | 8 ++++++--
 include/media/v4l2-async.h           | 4 +++-
 2 files changed, 9 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 372a22d8b4d5..9dbe29999dba 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -785,7 +785,7 @@  v4l2_async_connection_unique(struct v4l2_subdev *sd)
 }
 EXPORT_SYMBOL_GPL(v4l2_async_connection_unique);
 
-int v4l2_async_register_subdev(struct v4l2_subdev *sd)
+int __v4l2_async_register_subdev(struct v4l2_subdev *sd, struct module *module)
 {
 	struct v4l2_async_notifier *subdev_notifier;
 	struct v4l2_async_notifier *notifier;
@@ -809,6 +809,8 @@  int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 		return -EINVAL;
 	}
 
+	sd->owner = module;
+
 	mutex_lock(&list_lock);
 
 	list_for_each_entry(notifier, &notifier_list, notifier_entry) {
@@ -851,9 +853,11 @@  int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 
 	mutex_unlock(&list_lock);
 
+	sd->owner = NULL;
+
 	return ret;
 }
-EXPORT_SYMBOL(v4l2_async_register_subdev);
+EXPORT_SYMBOL(__v4l2_async_register_subdev);
 
 void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
 {
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index 9bd326d31181..f26c323e9c96 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -310,7 +310,9 @@  void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier);
  *
  * @sd: pointer to &struct v4l2_subdev
  */
-int v4l2_async_register_subdev(struct v4l2_subdev *sd);
+#define v4l2_async_register_subdev(sd) \
+	__v4l2_async_register_subdev(sd, THIS_MODULE)
+int __v4l2_async_register_subdev(struct v4l2_subdev *sd, struct module *module);
 
 /**
  * v4l2_async_register_subdev_sensor - registers a sensor sub-device to the