diff options
| author | Jack Morgenstein <jackm@dev.mellanox.co.il> | 2019-03-06 19:17:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-20 09:07:47 +0200 |
| commit | 6edfeb304bf18c9b69e451996598a26a5681ddb0 (patch) | |
| tree | a43b50f3192bb6cac10fbce0a6f3028eb5d168bf /drivers/infiniband/hw/mlx4/alias_GUID.c | |
| parent | 5e6e33fd757714e76d7abeddac125547bb2cf20d (diff) | |
IB/mlx4: Fix race condition between catas error reset and aliasguid flows
[ Upstream commit 587443e7773e150ae29e643ee8f41a1eed226565 ]
Code review revealed a race condition which could allow the catas error
flow to interrupt the alias guid query post mechanism at random points.
Thiis is fixed by doing cancel_delayed_work_sync() instead of
cancel_delayed_work() during the alias guid mechanism destroy flow.
Fixes: a0c64a17aba8 ("mlx4: Add alias_guid mechanism")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/alias_GUID.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/alias_GUID.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index 5e9939045852..ec138845a474 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -805,8 +805,8 @@ void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev) unsigned long flags; for (i = 0 ; i < dev->num_ports; i++) { - cancel_delayed_work(&dev->sriov.alias_guid.ports_guid[i].alias_guid_work); det = &sriov->alias_guid.ports_guid[i]; + cancel_delayed_work_sync(&det->alias_guid_work); spin_lock_irqsave(&sriov->alias_guid.ag_work_lock, flags); while (!list_empty(&det->cb_list)) { cb_ctx = list_entry(det->cb_list.next, |