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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2024-02-20 18:35:25 +0300 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2024-03-07 12:03:29 +0300 |
| commit | abb5a5d951fbea3feb5c4ba179b89bb96a1d3462 (patch) | |
| tree | d08dfb7d935dde147a99333b28d824515fc73a9f /drivers/video | |
| parent | 0285e9efaee8276305db5c52a59baf84e9731556 (diff) | |
| download | linux-abb5a5d951fbea3feb5c4ba179b89bb96a1d3462.tar.xz | |
backlight: lm3639: 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: 0f59858d5119 ("backlight: add new lm3639 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-3-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/backlight/lm3639_bl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c index 5246c171497d..564f62acd721 100644 --- a/drivers/video/backlight/lm3639_bl.c +++ b/drivers/video/backlight/lm3639_bl.c @@ -338,6 +338,7 @@ static int lm3639_probe(struct i2c_client *client) } /* backlight */ + memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; props.brightness = pdata->init_brt_led; props.max_brightness = pdata->max_brt_led; |