1 files changed, 1 insertions, 2 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index b9fd62a0fca2..e9f876a1655b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -901,12 +901,11 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
         if (!fs_info)
                 return ERR_PTR(-ENOMEM);
 
-        fs_info->tree_root = kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
+        fs_info->tree_root = btrfs_alloc_root(fs_info);
         if (!fs_info->tree_root) {
                 error = -ENOMEM;
                 goto error_fs_info;
         }
-        fs_info->tree_root->fs_info = fs_info;
         fs_info->fs_devices = fs_devices;
 
         fs_info->super_copy = kzalloc(BTRFS_SUPER_INFO_SIZE, GFP_NOFS);