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authorDmitry Baryshkov <dbaryshkov@gmail.com>2008-07-16 22:51:14 +0100
committerRichard Purdie <rpurdie@rpsys.net>2008-07-23 09:49:56 +0100
commitfe3025b55c8ed06929afe94e9c9095fc19d15aa0 (patch)
treeaad95bb0d04d0305f265ca1ecf442f091114a98a /drivers
parentf46e9203d9a100bae216cc06e17f2e77351aa8d8 (diff)
leds: Ensure led->trigger is set earlier
Make sure led->trigger is valid before calling trigger->activate Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/leds/led-triggers.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 0f242b3f09b..f910eaffe3a 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -111,16 +111,17 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger)
flags);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
+ led_cdev->trigger = NULL;
led_set_brightness(led_cdev, LED_OFF);
}
if (trigger) {
write_lock_irqsave(&trigger->leddev_list_lock, flags);
list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs);
write_unlock_irqrestore(&trigger->leddev_list_lock, flags);
+ led_cdev->trigger = trigger;
if (trigger->activate)
trigger->activate(led_cdev);
}
- led_cdev->trigger = trigger;
}
EXPORT_SYMBOL_GPL(led_trigger_set);