[Intel-wired-lan] [PATCH net v1 2/2] iavf: Fix call trace during removing iavf driver

[Jedrzej Jagielski]

From: Grzegorz Szczurek <grzegorzx.szczurek at intel.com>

If VF has configured tc qdisc with number of queues less than original
set and then the driver went in removing process, tc resources are also
releasing. Attempt of modify real num tx/rx in this state is causing
call trace, because kernel is trying to releasing uninitialized queues.

Fix by not modifying the number of queues when removing a driver.

Fixes: d5b33d024496 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek at intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski at intel.com>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index eec74ee5fc19..1b46a97f4ad6 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -3478,6 +3478,9 @@ static int __iavf_setup_tc(struct net_device *netdev, void *type_data)
 		}
 	}
 exit:
+	if (iavf_is_remove_in_progress(adapter))
+		return 0;
+
 	return ret;
 }
 
-- 
2.27.0