evie/android_kernel_oneplus_msm8998
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mmc: card: Fix NULL pointer dereference in mmc_blk_ioctl_rpmb_cmd()

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In mmc_blk_ioctl_rpmb_cmd(), if user data copy fails, the card
variable is dereferenced without NULL pointer check.
Adding NULL pointer check in this condition.

Change-Id: If3fd2175946cccaf838768d45de72bc2f5c32f6b
Signed-off-by: Siba Prasad <sibap@codeaurora.org>
This commit is contained in:
Siba Prasad 2017-08-02 22:32:18 +05:30
parent 560d31410c
commit dde9e2de48
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/card/block.c
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@ -1173,7 +1173,7 @@ idata_free:
cmd_done: cmd_done:
mmc_blk_put(md); mmc_blk_put(md);
if (card->cmdq_init) if (card && card->cmdq_init)
wake_up(&card->host->cmdq_ctx.wait); wake_up(&card->host->cmdq_ctx.wait);
return err; return err;
} }