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authorJacek Anaszewski <j.anaszewski@samsung.com>2014-08-20 17:41:55 +0400
committerBryan Wu <cooloney@gmail.com>2014-09-13 01:01:54 +0400
commit3ef7de5304edf60d0b8674dd7cdacc104e15a93c (patch)
tree2af483fbfc67853ce5c8b3772fadb93c872b0d35 /drivers/leds/led-class.c
parent914ae25a62e77ebbfa0ce7cbc60edd01cc4d1d31 (diff)
downloadlinux-3ef7de5304edf60d0b8674dd7cdacc104e15a93c.tar.xz
leds: Improve and export led_update_brightness
led_update_brightness helper function used to be exploited only locally in the led-class.c module, where its result was being passed to the brightness_show sysfs callback. With the introduction of v4l2-flash subdevice the same functionality becomes required for reading current brightness from a LED device. This patch adds checking of return value of the brightness_get callback and moves the led_update_brightness() function to the LED subsystem public API. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds/led-class.c')
-rw-r--r--drivers/leds/led-class.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 71666a40b79a..7440c58b8e6f 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -24,12 +24,6 @@
static struct class *leds_class;
-static void led_update_brightness(struct led_classdev *led_cdev)
-{
- if (led_cdev->brightness_get)
- led_cdev->brightness = led_cdev->brightness_get(led_cdev);
-}
-
static ssize_t brightness_show(struct device *dev,
struct device_attribute *attr, char *buf)
{