Commit e5723f95 authored by Ritesh Harjani's avatar Ritesh Harjani Committed by Ulf Hansson

mmc: core: Fix NULL ptr crash from mmc_should_fail_request

In case of CQHCI, mrq->cmd may be NULL for data requests (non DCMD).
In such case mmc_should_fail_request is directly dereferencing
mrq->cmd while cmd is NULL.
Fix this by checking for mrq->cmd pointer.

Fixes: 72a5af55 ("mmc: core: Add support for handling CQE requests")
Signed-off-by: default avatarRitesh Harjani <riteshh@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5603731a
...@@ -95,7 +95,7 @@ static void mmc_should_fail_request(struct mmc_host *host, ...@@ -95,7 +95,7 @@ static void mmc_should_fail_request(struct mmc_host *host,
if (!data) if (!data)
return; return;
if (cmd->error || data->error || if ((cmd && cmd->error) || data->error ||
!should_fail(&host->fail_mmc_request, data->blksz * data->blocks)) !should_fail(&host->fail_mmc_request, data->blksz * data->blocks))
return; return;
......
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