cifs: Fix missed free operations

cifs_setattr_nounix has two paths which miss free operations
for xid and fullpath.
Use goto cifs_setattr_exit like other paths to fix them.

CC: Stable <stable@vger.kernel.org>
Fixes: aa08185 ("cifs: flush before set-info if we have writeable handles")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>

fs/cifs/inode.c

@@ -2475,9 +2475,9 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
  rc = tcon->ses->server->ops->flush(xid, tcon, &wfile->fid);
  cifsFileInfo_put(wfile);
  if (rc)
- return rc;
+ goto cifs_setattr_exit;
  } else if (rc != -EBADF)
- return rc;
+ goto cifs_setattr_exit;
  else
  rc = 0;
  }