diff mbox

[1/1] mmc: dw_mmc: Fix NULL pointer dereference

Message ID 1389781753-28217-1-git-send-email-sachin.kamat@linaro.org
State Superseded
Headers show

Commit Message

Sachin Kamat Jan. 15, 2014, 10:29 a.m. UTC 
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>
---
 drivers/mmc/host/dw_mmc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 9ded62c8225e..8b3e58a5f9ed 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;