drivers/video/backlight/adp8860_bl.c: check strict_strtoul() return value

[android-x86/kernel.git] / drivers / video / backlight / adp8860_bl.c

diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index a447c92..734c650 100644 (file)
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -502,8 +502,10 @@ static ssize_t adp8860_bl_l1_daylight_max_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
 {
        struct adp8860_bl *data = dev_get_drvdata(dev);
+       int ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+       if (ret)
+               return ret;
 
-       strict_strtoul(buf, 10, &data->cached_daylight_max);
        return adp8860_store(dev, buf, count, ADP8860_BLMX1);
 }
 static DEVICE_ATTR(l1_daylight_max, 0664, adp8860_bl_l1_daylight_max_show,