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mmc: dw_mmc: Fix NULL pointer dereference
author
Sachin Kamat
<sachin.kamat@linaro.org>
Tue, 25 Feb 2014 09:48:28 +0000
(15:18 +0530)
committer
Chris Ball
<chris@printf.net>
Tue, 25 Feb 2014 20:43:27 +0000
(15:43 -0500)
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>
Signed-off-by: Chris Ball <chris@printf.net>
drivers/mmc/host/dw_mmc.c
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diff --git
a/drivers/mmc/host/dw_mmc.c
b/drivers/mmc/host/dw_mmc.c
index
55cd110
..
0c56faa
100644
(file)
--- 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;