| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 469/593] backlight: lm3630a_bl: Put fwnode in error case during ->probe() | Date | Mon, 12 Jul 2021 08:10:29 +0200 |
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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 --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c index e88a2b0e5904..662029d6a3dc 100644 --- a/drivers/video/backlight/lm3630a_bl.c +++ b/drivers/video/backlight/lm3630a_bl.c @@ -482,8 +482,10 @@ 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; -- 2.30.2
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