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authorDaniel Thompson <daniel.thompson@linaro.org>2024-02-20 15:35:24 +0000
committerLee Jones <lee@kernel.org>2024-03-07 09:03:29 +0000
commit0285e9efaee8276305db5c52a59baf84e9731556 (patch)
tree7cdc5e5f7328ebcf7e9e4c80fc89763a9fe034dc /drivers/video
parentdc0ba74e51a7497c3c88ab7c31aa3723645c6f9a (diff)
backlight: da9052: Fully initialize backlight_properties during probe
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/backlight/da9052_bl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index 1cdc8543310b..b8ff7046510e 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;