From: Sachin Kamat <sachin.kamat@linaro.org>
To: linux-mmc@vger.kernel.org
Cc: ulf.hansson@linaro.org, chris@printf.net, sachin.kamat@linaro.org
Subject: [PATCH 10/10] mmc: dw_mmc: Fix NULL pointer dereference
Date: Tue, 25 Feb 2014 15:18:28 +0530 [thread overview]
Message-ID: <1393321708-9719-10-git-send-email-sachin.kamat@linaro.org> (raw)
In-Reply-To: <1393321708-9719-1-git-send-email-sachin.kamat@linaro.org>
If mrq->sbc is not NULL but data->stop happens to be NULL,
it will lead to NULL pointer dereferencing. Avoid this by
having a NULL check for data->stop.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
---
drivers/mmc/host/dw_mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 55cd110a49c4..0c56faa6730e 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1345,7 +1345,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
if (!err) {
if (!data->stop || mrq->sbc) {
- if (mrq->sbc)
+ if (mrq->sbc && data->stop)
data->stop->error = 0;
dw_mci_request_end(host, mrq);
goto unlock;
--
1.7.9.5
next prev parent reply other threads:[~2014-02-25 9:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-25 9:48 [PATCH Resend 01/10] mmc: ushc: Fix incorrect parameter in sizeof Sachin Kamat
2014-02-25 9:48 ` [PATCH 02/10] mmc: wmt-sdmmc: Fix NULL pointer dereference Sachin Kamat
2014-02-25 9:48 ` [PATCH 03/10] mmc: sdhci-spear: " Sachin Kamat
2014-02-25 9:48 ` [PATCH 04/10] mmc: davinci: Remove redundant of_match_ptr Sachin Kamat
2014-02-25 9:48 ` [PATCH 05/10] mmc: dw_mmc: " Sachin Kamat
2014-02-25 9:48 ` [PATCH 06/10] mmc: sdhci-dove: " Sachin Kamat
2014-02-25 9:48 ` [PATCH 07/10] mmc: dw_mmc: Add missing description Sachin Kamat
2014-02-25 9:48 ` [PATCH 08/10] mmc: msm: Cleanup mmc-msm_sdcc.h header Sachin Kamat
2014-02-25 9:48 ` [PATCH 09/10] mmc: mvsdio: Cleanup mmc-mvsdio.h header Sachin Kamat
2014-02-25 9:48 ` Sachin Kamat [this message]
2014-02-25 10:06 ` [PATCH Resend 01/10] mmc: ushc: Fix incorrect parameter in sizeof Ulf Hansson
2014-02-25 20:44 ` Chris Ball
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