net/smc: cancel event worker during device removal

commit ece0d7bd74615773268475b6b64d6f1ebbd4b4c6 upstream.

During IB device removal, cancel the event worker before the device
structure is freed.

Fixes: a4cf0443c4 ("smc: introduce SMC as an IB-client")
Reported-by: syzbot+b297c6825752e7a07272@syzkaller.appspotmail.com
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Karsten Graul 2020-03-10 09:33:30 +01:00 committed by Greg Kroah-Hartman
parent a22af44034
commit 2f3121f6e2

View File

@ -561,6 +561,7 @@ static void smc_ib_remove_dev(struct ib_device *ibdev, void *client_data)
smc_pnet_remove_by_ibdev(smcibdev);
smc_ib_cleanup_per_ibdev(smcibdev);
ib_unregister_event_handler(&smcibdev->event_handler);
cancel_work_sync(&smcibdev->port_event_work);
kfree(smcibdev);
}