mmc: sdhci-msm: fix possible NULL pointer dereference

The platform_get_resource API may return NULL, hence check
the return value before using the mapped memory.

Change-Id: I28741554f8e1b5843671ee0d6b08bdcf8e4469c9
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
1 file changed