summaryrefslogtreecommitdiff
path: root/drivers/leds
diff options
context:
space:
mode:
authorSven Wegener <sven.wegener@stealer.net>2008-10-13 10:41:39 +0100
committerRichard Purdie <rpurdie@linux.intel.com>2008-10-20 22:37:04 +0100
commitdd8e5a2039607e0f79c33549726a2415d977c938 (patch)
tree942cfaf23b21797dd8d8be4a22c4d2a8107a2545 /drivers/leds
parent6af4f55c31764c2d97ddf59ae2149cd1769e2e25 (diff)
downloadlinux-3.10-dd8e5a2039607e0f79c33549726a2415d977c938.tar.gz
linux-3.10-dd8e5a2039607e0f79c33549726a2415d977c938.tar.bz2
linux-3.10-dd8e5a2039607e0f79c33549726a2415d977c938.zip
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>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/led-class.c5
-rw-r--r--drivers/leds/ledtrig-timer.c8
2 files changed, 3 insertions, 10 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index ee74ee7b2ac..8a7d138ec50 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -34,14 +34,11 @@ static ssize_t led_brightness_show(struct device *dev,
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,
diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
index 5c99f4f0c69..db681962d7b 100644
--- a/drivers/leds/ledtrig-timer.c
+++ b/drivers/leds/ledtrig-timer.c
@@ -70,9 +70,7 @@ static ssize_t led_delay_on_show(struct device *dev,
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
- sprintf(buf, "%lu\n", timer_data->delay_on);
-
- return strlen(buf) + 1;
+ return sprintf(buf, "%lu\n", timer_data->delay_on);
}
static ssize_t led_delay_on_store(struct device *dev,
@@ -116,9 +114,7 @@ static ssize_t led_delay_off_show(struct device *dev,
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
- sprintf(buf, "%lu\n", timer_data->delay_off);
-
- return strlen(buf) + 1;
+ return sprintf(buf, "%lu\n", timer_data->delay_off);
}
static ssize_t led_delay_off_store(struct device *dev,