We may get SLEEP event from firmware even if TXDone for last Tx packet
is still pending. In this case, we may end up accessing PCIe memory for
handling TXDone after power save handshake is completed. This causes
kernel crash with external abort.
We will delay sending SLEEP confirm to firmware in
this case to resolve the problem.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
---
drivers/net/wireless/marvell/mwifiex/cmdevt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
index 5347728..f582f61 100644
--- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
@@ -1118,7 +1118,7 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
void
mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
{
- if (!adapter->cmd_sent &&
+ if (!adapter->cmd_sent && !adapter->data_sent &&
!adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
mwifiex_dnld_sleep_confirm_cmd(adapter);
else
--
1.9.1
