From 10311540fab76c7e5530bf5f0267a3d1b8d5818e Mon Sep 17 00:00:00 2001 From: Mitch Williams Date: Wed, 9 Dec 2015 15:50:30 -0800 Subject: [PATCH] i40evf: null out ring pointers on free Since we check these ring pointers to make sure we don't double-allocate or double-free the rings, we had better null them out after we free them. In very rare cases this can cause a panic if the driver is removed during reset recovery. Change-ID: Ib06eb4910a3058275c8f7ec5ef7f45baa4674f96 Signed-off-by: Mitch Williams Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index d1c4335114fc..81d958422ccf 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -1122,7 +1122,9 @@ static void i40evf_free_queues(struct i40evf_adapter *adapter) if (!adapter->vsi_res) return; kfree(adapter->tx_rings); + adapter->tx_rings = NULL; kfree(adapter->rx_rings); + adapter->rx_rings = NULL; } /** -- 2.20.1