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-rw-r--r--drivers/video/backlight/adp5520_bl.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index af3119707dbf..d1aee730d7d8 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -211,8 +211,12 @@ static ssize_t adp5520_bl_daylight_max_store(struct device *dev,
const char *buf, size_t count)
{
struct adp5520_bl *data = dev_get_drvdata(dev);
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+ if (ret < 0)
+ return ret;
- strict_strtoul(buf, 10, &data->cached_daylight_max);
return adp5520_store(dev, buf, count, ADP5520_DAYLIGHT_MAX);
}
static DEVICE_ATTR(daylight_max, 0664, adp5520_bl_daylight_max_show,