Fix an issue found by klockwork. Just paranoia.
Signed-off-by: NJiebingLi <jiebing.li@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NChris Ball <cjb@laptop.org>