This error path should return -EINVAL instead of success.

Fixes: 88095e7b ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/0769d30c-ad80-421b-bf5d-7d6f5d85604e@moroto.mountainSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>