From 96db0e0335c7981911bd7efc5c79e82d2358c0fc Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 30 Oct 2007 10:53:54 -0700 Subject: [PATCH] IB/mlx4: Lock SQ lock in mlx4_ib_post_send() Because of a typo, mlx4_ib_post_send() takes the same lock rq.lock as mlx4_ib_post_recv(). Correct the code so the intended sq.lock is taken when posting a send. Noticed by Yossi Leybovitch and pointed out by Jack Morgenstein from Mellanox. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/qp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 6b33224..8cba9c5 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1282,7 +1282,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int size; int i; - spin_lock_irqsave(&qp->rq.lock, flags); + spin_lock_irqsave(&qp->sq.lock, flags); ind = qp->sq.head; @@ -1448,7 +1448,7 @@ out: (qp->sq.wqe_cnt - 1)); } - spin_unlock_irqrestore(&qp->rq.lock, flags); + spin_unlock_irqrestore(&qp->sq.lock, flags); return err; } -- 2.7.4