1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c
index 87a8f1166a3b..3e27a084257e 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -822,6 +822,7 @@ int mthca_init_cq(struct mthca_dev *dev, int nent,
         spin_lock_init(&cq->lock);
         cq->refcount = 1;
         init_waitqueue_head(&cq->wait);
+        mutex_init(&cq->mutex);
 
         memset(cq_context, 0, sizeof *cq_context);
         cq_context->flags           = cpu_to_be32(MTHCA_CQ_STATUS_OK      |