leds: after setting inverted attribute, we must update the LED

If we change the inverted attribute to another value, the LED will not be
inverted until we change the GPIO state.

Signed-off-by: Thadeu Lima de Souza Cascardo <[email protected]>
Cc: Samuel R. C. Vale <[email protected]>
Cc: Richard Purdie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/drivers/leds/ledtrig-gpio.c b/drivers/leds/ledtrig-gpio.c
index 8183b81fca84406be5da30b739da0c761e50d37b..1bc5db4ece0d951e202868a8cc539a34093d5cda 100644 (file)
--- a/drivers/leds/ledtrig-gpio.c
+++ b/drivers/leds/ledtrig-gpio.c
@@ -117,6 +117,9 @@ static ssize_t gpio_trig_inverted_store(struct device *dev,
 
        gpio_data->inverted = !!inverted;
 
+       /* After inverting, we need to update the LED. */
+       schedule_work(&gpio_data->work);
+
        return n;
 }
 static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show,