IB/core: trivial prink cleanup.

1. Replaced printk with appropriate pr_warn, pr_err, pr_info.
2. Removed unnecessary prints around memory allocation failure
which are not required, as reported by the checkpatch script.

Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Reviewed-by: Haggai Eran <haggaie@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 9729639..e13121f 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1713,7 +1713,7 @@
 		event.param.conn.private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
 		break;
 	default:
-		printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d\n",
+		pr_err("RDMA CMA: unexpected IB CM event: %d\n",
 		       ib_event->event);
 		goto out;
 	}
@@ -2186,8 +2186,8 @@
 
 	ret = rdma_listen(id, id_priv->backlog);
 	if (ret)
-		printk(KERN_WARNING "RDMA CMA: cma_listen_on_dev, error %d, "
-		       "listening on device %s\n", ret, cma_dev->device->name);
+		pr_warn("RDMA CMA: cma_listen_on_dev, error %d, listening on device %s\n",
+			ret, cma_dev->device->name);
 }
 
 static void cma_listen_on_all(struct rdma_id_private *id_priv)
@@ -3239,7 +3239,7 @@
 		event.status = 0;
 		break;
 	default:
-		printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d\n",
+		pr_err("RDMA CMA: unexpected IB CM event: %d\n",
 		       ib_event->event);
 		goto out;
 	}
@@ -4003,8 +4003,8 @@
 	if ((dev_addr->bound_dev_if == ndev->ifindex) &&
 	    (net_eq(dev_net(ndev), dev_addr->net)) &&
 	    memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) {
-		printk(KERN_INFO "RDMA CM addr change for ndev %s used by id %p\n",
-		       ndev->name, &id_priv->id);
+		pr_info("RDMA CM addr change for ndev %s used by id %p\n",
+			ndev->name, &id_priv->id);
 		work = kzalloc(sizeof *work, GFP_KERNEL);
 		if (!work)
 			return -ENOMEM;
@@ -4287,7 +4287,7 @@
 		goto err;
 
 	if (ibnl_add_client(RDMA_NL_RDMA_CM, RDMA_NL_RDMA_CM_NUM_OPS, cma_cb_table))
-		printk(KERN_WARNING "RDMA CMA: failed to add netlink callback\n");
+		pr_warn("RDMA CMA: failed to add netlink callback\n");
 	cma_configfs_init();
 
 	return 0;