mpu401: reindent misindented spinlock

Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/oss/mpu401.c

@@ -1015,7 +1015,7 @@ int attach_mpu401(struct address_info *hw_config, struct module *owner)
 		mpu401_chk_version(m, devc);
 		if (devc->version == 0)
 			mpu401_chk_version(m, devc);
-			spin_unlock_irqrestore(&devc->lock,flags);
+		spin_unlock_irqrestore(&devc->lock, flags);
 	}
 
 	if (devc->version != 0)