f2fs: report error of f2fs_create_root_stats

f2fs_create_root_stats can fail due to no memory, report it to user.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 478e5d54154f..b0966f3b1c9a 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -406,20 +406,23 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
         kfree(si);
 }
 
-void __init f2fs_create_root_stats(void)
+int __init f2fs_create_root_stats(void)
 {
         struct dentry *file;
 
         f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
         if (!f2fs_debugfs_root)
-                return;
+                return -ENOMEM;
 
         file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root,
                         NULL, &stat_fops);
         if (!file) {
                 debugfs_remove(f2fs_debugfs_root);
                 f2fs_debugfs_root = NULL;
+                return -ENOMEM;
         }
+
+        return 0;
 }
 
 void f2fs_destroy_root_stats(void)