mmc: dw_mmc: Fix NULL pointer dereference
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>
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 55cd110..0c56faa 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1345,7 +1345,7 @@
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;