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backlight: lp8788: Fully initialize backlight_properties during probe

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[ Upstream commit 392346827fbe8a7fd573dfb145170d7949f639a6 ]

props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!

Fixes: c5a51053cf3b ("backlight: add new lp8788 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-4-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Thompson 2024-02-20 15:35:26 +00:00 committed by Sasha Levin
parent 693c1edfcf
commit 765f673c0e
1 changed files with 1 additions and 0 deletions

1
drivers/video/backlight/lp8788_bl.c

@ -191,6 +191,7 @@ static int lp8788_backlight_register(struct lp8788_bl *bl)
int init_brt; int init_brt;
char *name; char *name;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM; props.type = BACKLIGHT_PLATFORM;
props.max_brightness = MAX_BRIGHTNESS; props.max_brightness = MAX_BRIGHTNESS;