diff mbox series

[RESEND,1/4] backlight: da9052: Fully initialize backlight_properties during probe

Message ID 20240220153532.76613-2-daniel.thompson@linaro.org (mailing list archive)
State Not Applicable
Headers show
Series Ensure all backlight drivers zero the properties structure | expand

Commit Message

Daniel Thompson Feb. 20, 2024, 3:35 p.m. UTC
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>
 drivers/video/backlight/da9052_bl.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series


diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index 1cdc8543310b4..b8ff7046510eb 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;