leds: uleds: Use module_misc_device macro to simplify the code

Use the module_misc_device macro to simplify the code, which is the
same as declaring with module_init() and module_exit().
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230815075944.1089298-3-lizetao1@huawei.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/uleds.c

@@ -209,17 +209,7 @@ static struct miscdevice uleds_misc = {
 	.name		= ULEDS_NAME,
 };
 
-static int __init uleds_init(void)
-{
-	return misc_register(&uleds_misc);
-}
-module_init(uleds_init);
-
-static void __exit uleds_exit(void)
-{
-	misc_deregister(&uleds_misc);
-}
-module_exit(uleds_exit);
+module_misc_device(uleds_misc);
 
 MODULE_AUTHOR("David Lechner <david@lechnology.com>");
 MODULE_DESCRIPTION("Userspace driver for the LED subsystem");