From: Dimitris Papastamos <d...@opensource.wolfsonmicro.com>
It seems that under certain circumstances the sdhci_tasklet_finish()
call can be entered with mrq set to NULL, causing the system to crash
with a NULL pointer de-reference.
Seen on S3C6410 system.
Signed-off-by: Dimitris Papastamos <d...@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broo...@opensource.wolfsonmicro.com>
---
drivers/mmc/host/sdhci.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 5553829..5c85352 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1384,7 +1384,7 @@ static void sdhci_tasklet_finish(unsigned long param)
* upon error conditions.
*/
if (!(host->flags & SDHCI_DEVICE_DEAD) &&
- ((mrq->cmd && mrq->cmd->error) ||
+ mrq && ((mrq->cmd && mrq->cmd->error) ||
(mrq->data && (mrq->data->error ||
(mrq->data->stop && mrq->data->stop->error))) ||
(host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))) {
--
1.7.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
