diff options
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_qp.c')
-rw-r--r-- | drivers/infiniband/hw/qib/qib_qp.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c index 4850d03870c2..a6a2cc2ba260 100644 --- a/drivers/infiniband/hw/qib/qib_qp.c +++ b/drivers/infiniband/hw/qib/qib_qp.c @@ -263,20 +263,16 @@ static void remove_qp(struct qib_ibdev *dev, struct qib_qp *qp) struct qib_qp __rcu **qpp; qpp = &dev->qp_table[n]; - q = rcu_dereference_protected(*qpp, - lockdep_is_held(&dev->qpt_lock)); - for (; q; qpp = &q->next) { + for (; (q = rcu_dereference_protected(*qpp, + lockdep_is_held(&dev->qpt_lock))) != NULL; + qpp = &q->next) if (q == qp) { atomic_dec(&qp->refcount); - *qpp = qp->next; - rcu_assign_pointer(qp->next, NULL); - q = rcu_dereference_protected(*qpp, - lockdep_is_held(&dev->qpt_lock)); + rcu_assign_pointer(*qpp, + rcu_dereference_protected(qp->next, + lockdep_is_held(&dev->qpt_lock))); break; } - q = rcu_dereference_protected(*qpp, - lockdep_is_held(&dev->qpt_lock)); - } } spin_unlock_irqrestore(&dev->qpt_lock, flags); |