staging: most: sound: Fix error path of audio_init

If most_register_configfs_subsys() fails, we should
call most_deregister_component() do cleanup.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 919c03ae ("staging: most: enable configfs support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190827131346.12704-1-yuehaibing@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/sound/sound.c

@@ -802,8 +802,11 @@ static int __init audio_init(void)
 	if (ret)
 		pr_err("Failed to register %s\n", comp.name);
 	ret = most_register_configfs_subsys(&comp);
-	if (ret)
+	if (ret) {
 		pr_err("Failed to register %s configfs subsys\n", comp.name);
+		most_deregister_component(&comp);
+	}
+
 	return ret;
 }