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 Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/smc/smc_ib.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index ca505ff..c974d7d 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -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); }