diff options
Diffstat (limited to 'drivers/input/evbug.c')
-rw-r--r-- | drivers/input/evbug.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/input/evbug.c b/drivers/input/evbug.c index 5a9653c3128..c21f2f12723 100644 --- a/drivers/input/evbug.c +++ b/drivers/input/evbug.c @@ -38,31 +38,43 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION("Input driver event debug module"); MODULE_LICENSE("GPL"); -static char evbug_name[] = "evbug"; - static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) { printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value); } -static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev, - const struct input_device_id *id) +static int evbug_connect(struct input_handler *handler, struct input_dev *dev, + const struct input_device_id *id) { struct input_handle *handle; + int error; - if (!(handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL))) - return NULL; + handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); + if (!handle) + return -ENOMEM; handle->dev = dev; handle->handler = handler; - handle->name = evbug_name; + handle->name = "evbug"; + + error = input_register_handle(handle); + if (error) + goto err_free_handle; - input_open_device(handle); + error = input_open_device(handle); + if (error) + goto err_unregister_handle; printk(KERN_DEBUG "evbug.c: Connected device: \"%s\", %s\n", dev->name, dev->phys); - return handle; + return 0; + + err_unregister_handle: + input_unregister_handle(handle); + err_free_handle: + kfree(handle); + return error; } static void evbug_disconnect(struct input_handle *handle) @@ -70,7 +82,7 @@ static void evbug_disconnect(struct input_handle *handle) printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", handle->dev->phys); input_close_device(handle); - + input_unregister_handle(handle); kfree(handle); } |