quota: remove unneeded return value of register_quota_format

The register_quota_format always returns 0, simply remove unneeded return
value.

Link: https://patch.msgid.link/20240715130534.2112678-3-shikemeng@huaweicloud.comSigned-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ocfs2/super.c

@@ -1571,15 +1571,13 @@ static int __init ocfs2_init(void)
 
 	ocfs2_set_locking_protocol();
 
-	status = register_quota_format(&ocfs2_quota_format);
-	if (status < 0)
-		goto out3;
+	register_quota_format(&ocfs2_quota_format);
+
 	status = register_filesystem(&ocfs2_fs_type);
 	if (!status)
 		return 0;
 
 	unregister_quota_format(&ocfs2_quota_format);
-out3:
 	debugfs_remove(ocfs2_debugfs_root);
 	ocfs2_free_mem_caches();
 out2:

fs/quota/dquot.c

@@ -163,13 +163,12 @@ static struct quota_module_name module_names[] = INIT_QUOTA_MODULE_NAMES;
 /* SLAB cache for dquot structures */
 static struct kmem_cache *dquot_cachep;
 
-int register_quota_format(struct quota_format_type *fmt)
+void register_quota_format(struct quota_format_type *fmt)
 {
 	spin_lock(&dq_list_lock);
 	fmt->qf_next = quota_formats;
 	quota_formats = fmt;
 	spin_unlock(&dq_list_lock);
-	return 0;
 }
 EXPORT_SYMBOL(register_quota_format);
 

fs/quota/quota_v1.c

@@ -235,7 +235,8 @@ static struct quota_format_type v1_quota_format = {
 
 static int __init init_v1_quota_format(void)
 {
-        return register_quota_format(&v1_quota_format);
+	register_quota_format(&v1_quota_format);
+	return 0;
 }
 
 static void __exit exit_v1_quota_format(void)

fs/quota/quota_v2.c

@@ -440,12 +440,9 @@ static struct quota_format_type v2r1_quota_format = {
 
 static int __init init_v2_quota_format(void)
 {
-	int ret;
-
-	ret = register_quota_format(&v2r0_quota_format);
-	if (ret)
-		return ret;
-	return register_quota_format(&v2r1_quota_format);
+	register_quota_format(&v2r0_quota_format);
+	register_quota_format(&v2r1_quota_format);
+	return 0;
 }
 
 static void __exit exit_v2_quota_format(void)

include/linux/quota.h

@@ -526,7 +526,7 @@ struct quota_info {
 	const struct quota_format_ops *ops[MAXQUOTAS];	/* Operations for each type */
 };
 
-int register_quota_format(struct quota_format_type *fmt);
+void register_quota_format(struct quota_format_type *fmt);
 void unregister_quota_format(struct quota_format_type *fmt);
 
 struct quota_module_name {

mm/shmem.c

@@ -4818,11 +4818,7 @@ void __init shmem_init(void)
 	shmem_init_inodecache();
 
 #ifdef CONFIG_TMPFS_QUOTA
-	error = register_quota_format(&shmem_quota_format);
-	if (error < 0) {
-		pr_err("Could not register quota format\n");
-		goto out3;
-	}
+	register_quota_format(&shmem_quota_format);
 #endif
 
 	error = register_filesystem(&shmem_fs_type);
@@ -4857,7 +4853,6 @@ void __init shmem_init(void)
 out2:
 #ifdef CONFIG_TMPFS_QUOTA
 	unregister_quota_format(&shmem_quota_format);
-out3:
 #endif
 	shmem_destroy_inodecache();
 	shm_mnt = ERR_PTR(error);