netdev - [PATCH next 2/2] idpf: cancel mailbox work in error path

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Date: Fri, 20 Oct 2023 10:56:00 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: netdev@...r.kernel.org,
	David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>
Cc: Pavan Kumar Linga <pavan.kumar.linga@...el.com>,
	Wojciech Drewek <wojciech.drewek@...el.com>,
	Krishneil Singh <krishneil.k.singh@...el.com>,
	Jacob Keller <jacob.e.keller@...el.com>
Subject: [PATCH next 2/2] idpf: cancel mailbox work in error path

From: Pavan Kumar Linga <pavan.kumar.linga@...el.com>

In idpf_vc_core_init, the mailbox work is queued
on a mailbox workqueue but it is not cancelled on error.
This results in a call trace when idpf_mbx_task tries
to access the freed mailbox queue pointer. Fix it by
cancelling the mailbox work in the error path.

Fixes: 4930fbf419a7 ("idpf: add core init and interrupt request")
Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@...el.com>
Tested-by: Krishneil Singh  <krishneil.k.singh@...el.com>
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
---
 drivers/net/ethernet/intel/idpf/idpf_virtchnl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
index e276b5360c2e..2c1b051fdc0d 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
@@ -3146,6 +3146,7 @@ int idpf_vc_core_init(struct idpf_adapter *adapter)
 
 err_intr_req:
 	cancel_delayed_work_sync(&adapter->serv_task);
+	cancel_delayed_work_sync(&adapter->mbx_task);
 	idpf_vport_params_buf_rel(adapter);
 err_netdev_alloc:
 	kfree(adapter->vports);
-- 
2.41.0