diff mbox series

[5.4,284/348] backlight: lm3630a_bl: Put fwnode in error case during ->probe()

Message ID 20210712060741.328765365@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman July 12, 2021, 6:11 a.m. UTC 
From: Andy Shevchenko <andy.shevchenko@gmail.com>

[ Upstream commit 6d1c32dbedd7d7e7372aa38033ec8782c39f6379 ]

device_for_each_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Cc: Brian Masney <masneyb@onstation.org>
Cc: Dan Murphy <dmurphy@ti.com>
Fixes: 8fbce8efe15cd ("backlight: lm3630a: Add firmware node support")
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Brian Masney <masneyb@onstation.org>
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/lm3630a_bl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 2d8e8192e4e2..f03ffe2bb237 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -480,8 +480,10 @@  static int lm3630a_parse_node(struct lm3630a_chip *pchip,
 
 	device_for_each_child_node(pchip->dev, node) {
 		ret = lm3630a_parse_bank(pdata, node, &seen_led_sources);
-		if (ret)
+		if (ret) {
+			fwnode_handle_put(node);
 			return ret;
+		}
 	}
 
 	return ret;