[PATCH 5.4 122/408] backlight: sky81452-backlight: Fix refcount imbalance on error

Greg Kroah-Hartman
2020-10-27T17:38:01Z

From: dinghao.liu@zju.edu.cn <dinghao.liu@zju.edu.cn>

[ Upstream commit b7a4f80bc316a56d6ec8750e93e66f42431ed960 ]

When of_property_read_u32_array() returns an error code, a
pairing refcount decrement is needed to keep np's refcount
balanced.

Fixes: f705806c9f355 ("backlight: Add support Skyworks SKY81452 backlight driver")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/video/backlight/sky81452-backlight.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c
index 2355f00f57732..1f6301375fd33 100644
--- a/drivers/video/backlight/sky81452-backlight.c
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -196,6 +196,7 @@ static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
num_entry);
if (ret < 0) {
dev_err(dev, "led-sources node is invalid.\n");
+ of_node_put(np);
return ERR_PTR(-EINVAL);
}

--
2.25.1