Thread (3 messages) 3 messages, 3 authors, 2025-03-31

Re: [PATCH v2] backlight: pm8941: Add NULL check in wled_configure()

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From: Dmitry Baryshkov <hidden>
Date: 2025-03-31 20:23:08
Also in: dri-devel, linux-arm-msm, lkml

On Mon, Mar 31, 2025 at 10:16:54PM +0800, Henry Martin wrote:
devm_kasprintf() return NULL if memory allocation fails. Currently,
wled_configure() does not check for this case, leading to a possible NULL
pointer dereference.

Add NULL check after devm_kasprintf() to prevent this issue.

Fixes: f86b77583d88 ("backlight: pm8941: Convert to using %pOFn instead of device_node.name")
Signed-off-by: Henry Martin <redacted>
---
V1 -> V2: Fix commit message to use imperative mood and wrap lines to 75
characters.

 drivers/video/backlight/qcom-wled.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
Reviewed-by: Dmitry Baryshkov <redacted>

-- 
With best wishes
Dmitry
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