drivers/video/backlight/adp8860_bl.c: check strict_strtoul() return value
authorMichael Hennerich <michael.hennerich@analog.com>
Thu, 11 Nov 2010 22:05:29 +0000 (14:05 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 12 Nov 2010 15:55:33 +0000 (07:55 -0800)
Handle return value, strict_strtoul is declared with attribute
warn_unused_result.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/backlight/adp8860_bl.c

index a447c92acc51aa12bcd2587a5b5ef90ba13f045b..734c650a47c433be7524e27b35b5e3c5b5eea0ad 100644 (file)
@@ -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,