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net: qede: stop adding events on an already destroyed workqueue 

Set rdma_wq pointer to NULL after destroying the workqueue and check
for it when adding new events to fix crashes on driver unload.

Fixes: cee9fbd8e2 ("qede: Add qedr framework")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
alistair/sunxi64-5.8
Alexander Lobakin 2020-06-23 16:51:31 +03:00 committed by David S. Miller
parent 31333c1a25
commit 4079c7f7a2
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/qlogic/qede/qede_rdma.c
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@ -105,6 +105,7 @@ static void qede_rdma_destroy_wq(struct qede_dev *edev)
qede_rdma_cleanup_event(edev);
destroy_workqueue(edev->rdma_info.rdma_wq);
edev->rdma_info.rdma_wq = NULL;
}
int qede_rdma_dev_add(struct qede_dev *edev, bool recovery)
@ -325,7 +326,7 @@ static void qede_rdma_add_event(struct qede_dev *edev,
if (edev->rdma_info.exp_recovery)
return;
if (!edev->rdma_info.qedr_dev)
if (!edev->rdma_info.qedr_dev || !edev->rdma_info.rdma_wq)
return;
/* We don't want the cleanup flow to start while we're allocating and