This is a note to let you know that I've just added the patch titled
leds: led-core: Fix refcount leak in of_led_get()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
leds-led-core-fix-refcount-leak-in-of_led_get.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e0c25878491fe207e6aca5b9122bdd3f3b7d5406
Author: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Tue Dec 20 16:18:07 2022 +0400
leds: led-core: Fix refcount leak in of_led_get()
[ Upstream commit da1afe8e6099980fe1e2fd7436dca284af9d3f29 ]
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: 699a8c7c4bd3 ("leds: Add of_led_get() and led_put()")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221220121807.1543790-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 6e88df4c87fa8..1024b1562aafc 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -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);
