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leds: max5970: Fix unreleased fwnode_handle in probe function

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[ Upstream commit 02f58f97419c828f58e30f24f54395ac9be159c0 ]

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: 736214b4b0 ("leds: max5970: Add support for max5970")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20241031-max5970-of_node_put-v2-1-0ffe1f1d3bc9@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Javier Carrasco
2024-10-31 17:30:30 +01:00
committed by Greg Kroah-Hartman
parent f6b239238c
commit de60d39e08
1 changed files with 3 additions and 2 deletions
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drivers/leds/leds-max5970.c
+3 -2
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@@ -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;