Input: simplify name handling for certain input handles

For evdev, joydev and mousedev, instead of having a separate character array
holding name of the handle, use struct devce's name which is the same.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 17fd6d4..966b886 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -60,7 +60,6 @@
 	int exist;
 	int open;
 	int minor;
-	char name[16];
 	struct input_handle handle;
 	wait_queue_head_t wait;
 	struct list_head client_list;
@@ -863,19 +862,17 @@
 	init_waitqueue_head(&mousedev->wait);
 
 	if (minor == MOUSEDEV_MIX)
-		strlcpy(mousedev->name, "mice", sizeof(mousedev->name));
+		dev_set_name(&mousedev->dev, "mice");
 	else
-		snprintf(mousedev->name, sizeof(mousedev->name),
-			 "mouse%d", minor);
+		dev_set_name(&mousedev->dev, "mouse%d", minor);
 
 	mousedev->minor = minor;
 	mousedev->exist = 1;
 	mousedev->handle.dev = input_get_device(dev);
-	mousedev->handle.name = mousedev->name;
+	mousedev->handle.name = dev_name(&mousedev->dev);
 	mousedev->handle.handler = handler;
 	mousedev->handle.private = mousedev;
 
-	dev_set_name(&mousedev->dev, mousedev->name);
 	mousedev->dev.class = &input_class;
 	if (dev)
 		mousedev->dev.parent = &dev->dev;