mmc: cavium: Check pointer before de-reference
authorJan Glauber <jglauber@cavium.com>
Thu, 13 Apr 2017 12:10:51 +0000 (14:10 +0200)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 24 Apr 2017 19:42:23 +0000 (21:42 +0200)
commitfe79018aa4c3af7d74e48b9a9b117da9fb6cf353
tree972b6c4575c779ee3853f0381a25139a5ad5f2e4
parentc34d1579de4665d9613691bc37aebb7ca86d535d
mmc: cavium: Check pointer before de-reference

Add a pointer check to prevent this smatch warning:

drivers/mmc/host/cavium.c:803 cvm_mmc_request()
error: we previously assumed 'cmd->data' could be null (see line 782)

This is a theoretical fix because MMC_CMD_ADTC seems to imply
that cmd->data is not null. Nevertheless checking cmd->data
before using it improves readability.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/cavium.c