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[RFC,09/13] iio: addac: ad74413r: Use __free(fwnode_handle) to replace fwnode_handle_put() calls

Message ID 20240101172611.694830-10-jic23@kernel.org
State Superseded
Headers show
Series device property / IIO: Use cleanup.h magic for fwnode_handle_put() handling. | expand

Commit Message

Jonathan Cameron Jan. 1, 2024, 5:26 p.m. UTC 
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

This use of the new cleanup.h scope based freeing infrastructure allows
us to exit directly from error conditions within the
fwnode_for_each_available_child_node(dev, child) loop. On normal exit
from that loop no fwnode_handle reference will be held and the child
pointer will be NULL thus making the automatically run
fwnode_handle_put() a noop.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
 drivers/iio/addac/ad74413r.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)
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Patch

diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
index 7af3e4b8fe3b..ec9a466e118d 100644
--- a/drivers/iio/addac/ad74413r.c
+++ b/drivers/iio/addac/ad74413r.c
@@ -1255,21 +1255,16 @@  static int ad74413r_parse_channel_config(struct iio_dev *indio_dev,
 static int ad74413r_parse_channel_configs(struct iio_dev *indio_dev)
 {
 	struct ad74413r_state *st = iio_priv(indio_dev);
-	struct fwnode_handle *channel_node = NULL;
+	struct fwnode_handle *channel_node __free(fwnode_handle) = NULL;
 	int ret;
 
 	fwnode_for_each_available_child_node(dev_fwnode(st->dev), channel_node) {
 		ret = ad74413r_parse_channel_config(indio_dev, channel_node);
 		if (ret)
-			goto put_channel_node;
+			return ret;
 	}
 
 	return 0;
-
-put_channel_node:
-	fwnode_handle_put(channel_node);
-
-	return ret;
 }
 
 static int ad74413r_setup_channels(struct iio_dev *indio_dev)