[PATCH RESEND 3/4] backlight: lp8788: Fully initialize backlight_properties during probe

From: Daniel Thompson
Date: Tue Feb 20 2024 - 10:36:23 EST


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@xxxxxxxxxx>
---
drivers/video/backlight/lp8788_bl.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index d1a14b0db265b..31f97230ee506 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -191,6 +191,7 @@ static int lp8788_backlight_register(struct lp8788_bl *bl)
int init_brt;
char *name;

+ memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = MAX_BRIGHTNESS;

--
2.43.0