| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 87/89] net/smc: cancel event worker during device removal | Date | Tue, 17 Mar 2020 11:55:36 +0100 |
| |
From: Karsten Graul <kgraul@linux.ibm.com>
commit ece0d7bd74615773268475b6b64d6f1ebbd4b4c6 upstream.
During IB device removal, cancel the event worker before the device structure is freed.
Fixes: a4cf0443c414 ("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>
--- net/smc/smc_ib.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -561,6 +561,7 @@ static void smc_ib_remove_dev(struct ib_ 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); }
|