From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
A work queue cannot just rely on the ib_device not being freed, it must
hold a kref on the memory so that the BNXT_RE_FLAG_IBDEV_REGISTERED check
works.
Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
---
drivers/infiniband/hw/bnxt_re/main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 885127c..c494e11 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -1670,6 +1670,7 @@ static void bnxt_re_task(struct work_struct *work)
smp_mb__before_atomic();
atomic_dec(&rdev->sched_count);
exit:
+ put_device(&rdev->ibdev.dev);
kfree(re_work);
}
@@ -1735,6 +1736,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
/* Allocate for the deferred task */
re_work = kzalloc(sizeof(*re_work), GFP_ATOMIC);
if (re_work) {
+ get_device(&rdev->ibdev.dev);
re_work->rdev = rdev;
re_work->event = event;
re_work->vlan_dev = (real_dev == netdev ?
--
2.5.5
