This fixes a NULL pointer dereference in case of a MMC request with a
set block count command and no data.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Tested-by: NPeter Robinson <pbrobinson@gmail.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>