An object initialized via device_get_named_child_node() requires calls
to fwnode_handle_put() when it is no longer required to avoid leaking
memory.
Add the automatic cleanup facility for 'led_node' to ensure that
fwnode_handle_put() is called in all execution paths.
Fixes: 736214b4b02a ("leds: max5970: Add support for max5970")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
Changes in v2:
- Squash patches for mainline solution without intermediate steps.
- Link to v1: https://lore.kernel.org/r/20241019-max5970-of_node_put-v1-0-e6ce4af4119b@xxxxxxxxx
---
drivers/leds/leds-max5970.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/leds/leds-max5970.c b/drivers/leds/leds-max5970.c
index 56a584311581..285074c53b23 100644
--- a/drivers/leds/leds-max5970.c
+++ b/drivers/leds/leds-max5970.c
@@ -45,7 +45,7 @@ static int max5970_led_set_brightness(struct led_classdev *cdev,
static int max5970_led_probe(struct platform_device *pdev)
{
- struct fwnode_handle *led_node, *child;
+ struct fwnode_handle *child;
struct device *dev = &pdev->dev;
struct regmap *regmap;
struct max5970_led *ddata;
@@ -55,7 +55,8 @@ static int max5970_led_probe(struct platform_device *pdev)
if (!regmap)
return -ENODEV;
- led_node = device_get_named_child_node(dev->parent, "leds");
+ struct fwnode_handle *led_node __free(fwnode_handle) =
+ device_get_named_child_node(dev->parent, "leds");
if (!led_node)
return -ENODEV;
---
base-commit: f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06
change-id: 20241019-max5970-of_node_put-939b004f57d2
Best regards,
--
Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
