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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2016-03-08 23:08:36 +0100 |
|---|---|---|
| committer |   Jacek Anaszewski <j.anaszewski@samsung.com> | 2016-03-14 09:22:23 +0100 |
| commit | 7296c33ed12ef13de50e03c76643382123766f96 (patch) | |
| tree | 0e638f9b24d7ca375cdbfb323689626f2c21ed1d /drivers/leds | |
| parent | leds: max8997: Use devm_led_classdev_register (diff) | |
| download | linux-dev-7296c33ed12ef13de50e03c76643382123766f96.tar.xz linux-dev-7296c33ed12ef13de50e03c76643382123766f96.zip | |
leds: triggers: simplify led_trigger_store
led_trigger_store can be significantly simplified by using sysfs_streq().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/led-triggers.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index e1e933424ac9..2181581795d3 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -34,9 +34,7 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct led_classdev *led_cdev = dev_get_drvdata(dev); - char trigger_name[TRIG_NAME_MAX]; struct led_trigger *trig; - size_t len; int ret = count; mutex_lock(&led_cdev->led_access); @@ -46,21 +44,14 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, goto unlock; } - trigger_name[sizeof(trigger_name) - 1] = '\0'; - strncpy(trigger_name, buf, sizeof(trigger_name) - 1); - len = strlen(trigger_name); - - if (len && trigger_name[len - 1] == '\n') - trigger_name[len - 1] = '\0'; - - if (!strcmp(trigger_name, "none")) { + if (sysfs_streq(buf, "none")) { led_trigger_remove(led_cdev); goto unlock; } down_read(&triggers_list_lock); list_for_each_entry(trig, &trigger_list, next_trig) { - if (!strcmp(trigger_name, trig->name)) { + if (sysfs_streq(buf, trig->name)) { down_write(&led_cdev->trigger_lock); led_trigger_set(led_cdev, trig); up_write(&led_cdev->trigger_lock); |