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Commit 877947bc authored by Liu Yuan's avatar Liu Yuan Committed by Linus Torvalds
Browse files

drivers/video/backlight/adp5520_bl.c: check strict_strtoul() return value 



It should check if strict_strtoul() succeeds.

[akpm@linux-foundation.org: don't override strict_strtoul() return value]
Signed-off-by: default avatarLiu Yuan <tailai.ly@taobao.com>
Acked-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f06590bd

drivers/video/backlight/adp5520_bl.c

+5 −1
Original line number Diff line number Diff line
@@ -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,