switch open-coded instances of d_make_root() to new helper

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 6 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 3ce97b217cbe..81df3fec6a6d 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -629,7 +629,6 @@ static int btrfs_fill_super(struct super_block *sb,
                             void *data, int silent)
 {
         struct inode *inode;
-        struct dentry *root_dentry;
         struct btrfs_fs_info *fs_info = btrfs_sb(sb);
         struct btrfs_key key;
         int err;
@@ -660,15 +659,12 @@ static int btrfs_fill_super(struct super_block *sb,
                 goto fail_close;
         }
 
-        root_dentry = d_alloc_root(inode);
-        if (!root_dentry) {
-                iput(inode);
+        sb->s_root = d_make_root(inode);
+        if (!sb->s_root) {
                 err = -ENOMEM;
                 goto fail_close;
         }
 
-        sb->s_root = root_dentry;
-
         save_mount_options(sb, data);
         cleancache_init_fs(sb);
         sb->s_flags |= MS_ACTIVE;