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leds: led-core: Fix refcount leak in of_led_get()

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[ Upstream commit da1afe8e60 ]

class_find_device_by_of_node() calls class_find_device(), it will take
the reference, use the put_device() to drop the reference when not need
anymore.

Fixes: 699a8c7c4b ("leds: Add of_led_get() and led_put()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221220121807.1543790-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-12-20 16:18:07 +04:00 committed by Greg Kroah-Hartman
parent 062547cbcd
commit d880981b82
1 changed files with 1 additions and 0 deletions
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drivers/leds/led-class.c
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@ -235,6 +235,7 @@ struct led_classdev *of_led_get(struct device_node *np, int index)
led_dev = class_find_device_by_of_node(leds_class, led_node);
of_node_put(led_node);
put_device(led_dev);
if (!led_dev)
return ERR_PTR(-EPROBE_DEFER);