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Diffstat (limited to 'kernel/drivers/infiniband/hw/mlx4/mcg.c')
-rw-r--r--kernel/drivers/infiniband/hw/mlx4/mcg.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/drivers/infiniband/hw/mlx4/mcg.c b/kernel/drivers/infiniband/hw/mlx4/mcg.c
index ed327e6c8..a0559a8af 100644
--- a/kernel/drivers/infiniband/hw/mlx4/mcg.c
+++ b/kernel/drivers/infiniband/hw/mlx4/mcg.c
@@ -206,15 +206,16 @@ static int send_mad_to_wire(struct mlx4_ib_demux_ctx *ctx, struct ib_mad *mad)
{
struct mlx4_ib_dev *dev = ctx->dev;
struct ib_ah_attr ah_attr;
+ unsigned long flags;
- spin_lock(&dev->sm_lock);
+ spin_lock_irqsave(&dev->sm_lock, flags);
if (!dev->sm_ah[ctx->port - 1]) {
/* port is not yet Active, sm_ah not ready */
- spin_unlock(&dev->sm_lock);
+ spin_unlock_irqrestore(&dev->sm_lock, flags);
return -EAGAIN;
}
mlx4_ib_query_ah(dev->sm_ah[ctx->port - 1], &ah_attr);
- spin_unlock(&dev->sm_lock);
+ spin_unlock_irqrestore(&dev->sm_lock, flags);
return mlx4_ib_send_to_wire(dev, mlx4_master_func_num(dev->dev),
ctx->port, IB_QPT_GSI, 0, 1, IB_QP1_QKEY,
&ah_attr, NULL, mad);