ALSA: sound/atmel/ac97c.c: Convert to module_platform_driver

This reduces some boilerplate code.

Signed-off-by: Alexander Stein <[e-mail]>
Acked-by: Alexandre Belloni <[e-mail]>
Acked-by: Nicolas Ferre <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>

sound/atmel/ac97c.c

···
 }
 
 static struct platform_driver atmel_ac97c_driver = {
+	.probe		= atmel_ac97c_probe,
 	.remove		= atmel_ac97c_remove,
 	.driver		= {
 		.name	= "atmel_ac97c",
···
 		.pm	= ATMEL_AC97C_PM_OPS,
 	},
 };
-
-static int __init atmel_ac97c_init(void)
-{
-	return platform_driver_probe(&atmel_ac97c_driver,
-			atmel_ac97c_probe);
-}
-module_init(atmel_ac97c_init);
-
-static void __exit atmel_ac97c_exit(void)
-{
-	platform_driver_unregister(&atmel_ac97c_driver);
-}
-module_exit(atmel_ac97c_exit);
+module_platform_driver(atmel_ac97c_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Driver for Atmel AC97 controller");