From: Arthur Kiyanovski <akiy...@amazon.com>
In a rare scenario when ena_device_restore() fails, followed by device
remove, an FLR will not be issued. In this case, the device will keep
sending asynchronous AENQ keep-alive events, even after driver removal,
leading to memory corruption.
Signed-off-by: Arthur Kiyanovski <akiy...@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c
b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 23f2dda..7282a27 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -2619,7 +2619,11 @@ static int ena_restore_device(struct ena_adapter
*adapter)
ena_free_mgmnt_irq(adapter);
ena_disable_msix(adapter);
err_device_destroy:
+ ena_com_abort_admin_commands(ena_dev);
+ ena_com_wait_for_abort_completion(ena_dev);
ena_com_admin_destroy(ena_dev);
+ ena_com_mmio_reg_read_request_destroy(ena_dev);
+ ena_com_dev_reset(ena_dev, ENA_REGS_RESET_DRIVER_INVALID_STATE);
err:
clear_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags);
clear_bit(ENA_FLAG_ONGOING_RESET, &adapter->flags);
--
2.7.4
