RDMA/mlx5: Remove redundant allocation warning print

The kmalloc() failure to allocate memory generates enough information
and doesn't need to be accompanied by another driver print.

Fixes: d69a24e0 ("IB/mlx5: Move IB event processing onto a workqueue")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/mlx5/main.c

@@ -3345,7 +3345,9 @@ static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context,
 	struct mlx5_ib_event_work *work;
 
 	work = kmalloc(sizeof(*work), GFP_ATOMIC);
-	if (work) {
+	if (!work)
+		return;
+
 	INIT_WORK(&work->work, mlx5_ib_handle_event);
 	work->dev = dev;
 	work->param = param;
@@ -3353,11 +3355,6 @@ static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context,
 	work->event = event;
 
 	queue_work(mlx5_ib_event_wq, &work->work);
-		return;
-	}
-
-	dev_warn(&dev->pdev->dev, "%s: mlx5_dev_event: %d, with param: %lu dropped, couldn't allocate memory.\n",
-		 __func__, event, param);
 }
 
 static int set_has_smi_cap(struct mlx5_ib_dev *dev)