From: Daniel Thompson daniel.thompson@linaro.org
[ Upstream commit 0285e9efaee8276305db5c52a59baf84e9731556 ]
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: 6ede3d832aaa ("backlight: add driver for DA9052/53 PMIC v1") Signed-off-by: Daniel Thompson daniel.thompson@linaro.org Link: https://lore.kernel.org/r/20240220153532.76613-2-daniel.thompson@linaro.org Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/backlight/da9052_bl.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c index 882359dd288c0..aa00379392a0f 100644 --- a/drivers/video/backlight/da9052_bl.c +++ b/drivers/video/backlight/da9052_bl.c @@ -117,6 +117,7 @@ static int da9052_backlight_probe(struct platform_device *pdev) wleds->led_reg = platform_get_device_id(pdev)->driver_data; wleds->state = DA9052_WLEDS_OFF;
+ memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; props.max_brightness = DA9052_MAX_BRIGHTNESS;