NFSD: Reset creds after mnt_want_write_file() fail

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4recover.c

@@ -188,7 +188,7 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
 
 	status = mnt_want_write_file(nn->rec_file);
 	if (status)
-		return;
+		goto out_creds;
 
 	dir = nn->rec_file->f_path.dentry;
 	/* lock the parent */
@@ -228,6 +228,7 @@ out_unlock:
 				user_recovery_dirname);
 	}
 	mnt_drop_write_file(nn->rec_file);
+out_creds:
 	nfs4_reset_creds(original_cred);
 }