RDMA/cma: Initialize rdma_bind_list in cma_alloc_any_port()

The struct rdma_bind_list fields for hlist are not being initialized,
resulting in a corrupted list.  Fix this by using kzalloc() to make
sure all pointers are NULL.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/core/cma.c

@@ -1821,7 +1821,7 @@ static int cma_alloc_port(struct idr *ps, struct rdma_id_private *id_priv,
 	struct rdma_bind_list *bind_list;
 	int port, ret;
 
-	bind_list = kmalloc(sizeof *bind_list, GFP_KERNEL);
+	bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
 	if (!bind_list)
 		return -ENOMEM;