diff mbox series

[v4,20/38] media: v4l: async: Clean up error handling in v4l2_async_match_notify

Message ID 20230622114028.908825-21-sakari.ailus@linux.intel.com
State Superseded
Headers show
Series Separate links and async sub-devices | expand

Commit Message

Sakari Ailus June 22, 2023, 11:40 a.m. UTC 
Add labels for error handling instead of doing it all in individual cases.
Prepare for more functionality in this function.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested_by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
---
 drivers/media/v4l2-core/v4l2-async.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 9964d7f384807..0a9c9fb2a42c3 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -320,10 +320,8 @@  static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 		return ret;
 
 	ret = v4l2_async_nf_call_bound(notifier, sd, asc);
-	if (ret < 0) {
-		v4l2_device_unregister_subdev(sd);
-		return ret;
-	}
+	if (ret < 0)
+		goto err_unregister_subdev;
 
 	/*
 	 * Depending of the function of the entities involved, we may want to
@@ -332,11 +330,8 @@  static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	 * pad).
 	 */
 	ret = v4l2_async_create_ancillary_links(notifier, sd);
-	if (ret) {
-		v4l2_async_nf_call_unbind(notifier, sd, asc);
-		v4l2_device_unregister_subdev(sd);
-		return ret;
-	}
+	if (ret)
+		goto err_call_unbind;
 
 	list_del(&asc->waiting_entry);
 	sd->asd = asc;
@@ -363,6 +358,14 @@  static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	subdev_notifier->parent = notifier;
 
 	return v4l2_async_nf_try_all_subdevs(subdev_notifier);
+
+err_call_unbind:
+	v4l2_async_nf_call_unbind(notifier, sd, asc);
+
+err_unregister_subdev:
+	v4l2_device_unregister_subdev(sd);
+
+	return ret;
 }
 
 /* Test all async sub-devices in a notifier for a match. */