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path: root/drivers/leds/led-triggers.c
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Diffstat (limited to 'drivers/leds/led-triggers.c')
-rw-r--r--drivers/leds/led-triggers.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 262eb4193710..3c972b2f9893 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);