backlight: hx8357: Fix potential NULL pointer dereference

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The "im" pins are optional. Add missing check in the hx8357_probe().

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/642e1230-3358-4006-a17f-3f297897ae74@moroto.mountain
Fixes: 7d84a63a39 ("backlight: hx8357: Convert to agnostic GPIO API")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240114143921.550736-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>

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Andy Shevchenko 2024-01-14 16:39:21 +02:00 • committed by Lee Jones

parent 7774f3d1dd

commit b1ba8bcb2d

1 changed files with 6 additions and 4 deletions

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drivers/video/backlight/hx8357.c

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