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| author | Richard Purdie <rpurdie@rpsys.net> | 2007-12-31 23:09:44 +0000 |
|---|---|---|
| committer | Richard Purdie <rpurdie@rpsys.net> | 2007-12-31 23:09:44 +0000 |
| commit | 72f8da329e07ad8a72c1f0e96b8955cfeb7c7329 (patch) | |
| tree | 7440f70caf2fb70e987f814cebcdf233a17b425c /drivers/leds/led-class.c | |
| parent | e697789d64f8748cb219d7f5c413c512953802cc (diff) | |
| download | linux-72f8da329e07ad8a72c1f0e96b8955cfeb7c7329.tar.gz | |
leds: Fix leds_list_lock locking issues
Covert leds_list_lock to a rw_sempahore to match previous LED trigger locking fixes, fixing lock ordering. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers/leds/led-class.c')
| -rw-r--r-- | drivers/leds/led-class.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index ba8b04b03b9f..64c66b3769c9 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -106,9 +106,9 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) goto err_out; /* add to the list of leds */ - write_lock(&leds_list_lock); + down_write(&leds_list_lock); list_add_tail(&led_cdev->node, &leds_list); - write_unlock(&leds_list_lock); + up_write(&leds_list_lock); #ifdef CONFIG_LEDS_TRIGGERS init_rwsem(&led_cdev->trigger_lock); @@ -155,9 +155,9 @@ void led_classdev_unregister(struct led_classdev *led_cdev) device_unregister(led_cdev->dev); - write_lock(&leds_list_lock); + down_write(&leds_list_lock); list_del(&led_cdev->node); - write_unlock(&leds_list_lock); + up_write(&leds_list_lock); } EXPORT_SYMBOL_GPL(led_classdev_unregister); |