leds: Remove uneeded strlen calls
There's no need for the additional call to strlen(), we can directly
return the value returned by sprintf(). We now return a length value
that doesn't include the final '\0', but user space shouldn't bother
about it anyway.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index ee74ee7..8a7d138 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -34,14 +34,11 @@
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
- ssize_t ret = 0;
/* no lock needed for this */
led_update_brightness(led_cdev);
- sprintf(buf, "%u\n", led_cdev->brightness);
- ret = strlen(buf) + 1;
- return ret;
+ return sprintf(buf, "%u\n", led_cdev->brightness);
}
static ssize_t led_brightness_store(struct device *dev,
