diff options
Diffstat (limited to 'drivers/leds/led-triggers.c')
| -rw-r--r-- | drivers/leds/led-triggers.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 262eb419371..3c972b2f989 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -166,6 +166,19 @@ void led_trigger_set_default(struct led_classdev *led_cdev) } EXPORT_SYMBOL_GPL(led_trigger_set_default); +void led_trigger_rename_static(const char *name, struct led_trigger *trig) +{ + /* new name must be on a temporary string to prevent races */ + BUG_ON(name == trig->name); + + down_write(&triggers_list_lock); + /* this assumes that trig->name was originaly allocated to + * non constant storage */ + strcpy((char *)trig->name, name); + up_write(&triggers_list_lock); +} +EXPORT_SYMBOL_GPL(led_trigger_rename_static); + /* LED Trigger Interface */ int led_trigger_register(struct led_trigger *trig) @@ -300,13 +313,13 @@ void led_trigger_register_simple(const char *name, struct led_trigger **tp) if (err < 0) { kfree(trig); trig = NULL; - printk(KERN_WARNING "LED trigger %s failed to register" - " (%d)\n", name, err); + pr_warn("LED trigger %s failed to register (%d)\n", + name, err); } - } else - printk(KERN_WARNING "LED trigger %s failed to register" - " (no memory)\n", name); - + } else { + pr_warn("LED trigger %s failed to register (no memory)\n", + name); + } *tp = trig; } EXPORT_SYMBOL_GPL(led_trigger_register_simple); |