diff options
| -rw-r--r-- | drivers/leds/leds-wm831x-status.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/leds/leds-wm831x-status.c b/drivers/leds/leds-wm831x-status.c index be93b20e792a..c5798b92e4d3 100644 --- a/drivers/leds/leds-wm831x-status.c +++ b/drivers/leds/leds-wm831x-status.c @@ -188,24 +188,14 @@ static ssize_t wm831x_status_src_store(struct device *dev, { struct led_classdev *led_cdev = dev_get_drvdata(dev); struct wm831x_status *led = to_wm831x_status(led_cdev); - char name[20]; int i; - size_t len; - name[sizeof(name) - 1] = '\0'; - strncpy(name, buf, sizeof(name) - 1); - len = strlen(name); - - if (len && name[len - 1] == '\n') - name[len - 1] = '\0'; - - for (i = 0; i < ARRAY_SIZE(led_src_texts); i++) { - if (!strcmp(name, led_src_texts[i])) { - mutex_lock(&led->mutex); - led->src = i; - mutex_unlock(&led->mutex); - wm831x_status_set(led); - } + i = sysfs_match_string(led_src_texts, buf); + if (i >= 0) { + mutex_lock(&led->mutex); + led->src = i; + mutex_unlock(&led->mutex); + wm831x_status_set(led); } return size; |