diff options
Diffstat (limited to 'drivers/leds/led-triggers.c')
| -rw-r--r-- | drivers/leds/led-triggers.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 454fb0901f8..575368c2b10 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -1,7 +1,7 @@ /* * LED Triggers Core * - * Copyright 2005-2006 Openedhand Ltd. + * Copyright 2005-2007 Openedhand Ltd. * * Author: Richard Purdie <rpurdie@openedhand.com> * @@ -28,10 +28,10 @@ static DEFINE_RWLOCK(triggers_list_lock); static LIST_HEAD(trigger_list); -ssize_t led_trigger_store(struct class_device *dev, const char *buf, - size_t count) +ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { - struct led_classdev *led_cdev = class_get_devdata(dev); + struct led_classdev *led_cdev = dev_get_drvdata(dev); char trigger_name[TRIG_NAME_MAX]; struct led_trigger *trig; size_t len; @@ -67,9 +67,10 @@ ssize_t led_trigger_store(struct class_device *dev, const char *buf, } -ssize_t led_trigger_show(struct class_device *dev, char *buf) +ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, + char *buf) { - struct led_classdev *led_cdev = class_get_devdata(dev); + struct led_classdev *led_cdev = dev_get_drvdata(dev); struct led_trigger *trig; int len = 0; @@ -183,13 +184,20 @@ int led_trigger_register(struct led_trigger *trigger) void led_trigger_register_simple(const char *name, struct led_trigger **tp) { struct led_trigger *trigger; + int err; trigger = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); if (trigger) { trigger->name = name; - led_trigger_register(trigger); - } + err = led_trigger_register(trigger); + if (err < 0) + printk(KERN_WARNING "LED trigger %s failed to register" + " (%d)\n", name, err); + } else + printk(KERN_WARNING "LED trigger %s failed to register" + " (no memory)\n", name); + *tp = trigger; } @@ -215,7 +223,8 @@ void led_trigger_unregister(struct led_trigger *trigger) void led_trigger_unregister_simple(struct led_trigger *trigger) { - led_trigger_unregister(trigger); + if (trigger) + led_trigger_unregister(trigger); kfree(trigger); } |