In the function pwm_backlight_parse_dt() the last iteration of the for
loop accessed memory past the end of the array 'pwm_backlight->levels[]'
because of a wrong test ( '<=' instead of '<').
---
drivers/video/backlight-pwm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/backlight-pwm.c b/drivers/video/backlight-pwm.c
index 91435f8..3024ec6 100644
--- a/drivers/video/backlight-pwm.c
+++ b/drivers/video/backlight-pwm.c
@@ -150,7 +150,7 @@ static int pwm_backlight_parse_dt(struct device_d *dev,
if (ret < 0)
return ret;
- for (i = 0; i <= pwm_backlight->backlight.brightness_max; i++)
+ for (i = 0; i < pwm_backlight->backlight.brightness_max; i++)
if (pwm_backlight->levels[i] > pwm_backlight->scale)
pwm_backlight->scale = pwm_backlight->levels[i];
--
2.9.1
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