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net/smc: cancel event worker during device removal 

commit ece0d7bd74 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 dbaba2a4db
commit 881f9469cc
1 changed files with 1 additions and 0 deletions
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1
net/smc/smc_ib.c
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@ -568,6 +568,7 @@ static void smc_ib_remove_dev(struct ib_device *ibdev, void *client_data)
spin_unlock(&smc_ib_devices.lock);
smc_ib_cleanup_per_ibdev(smcibdev);
ib_unregister_event_handler(&smcibdev->event_handler);
cancel_work_sync(&smcibdev->port_event_work);
kfree(smcibdev);
}