diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 8f6e816a7395..b402a95c87c7 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -1023,6 +1023,7 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
 	info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
 	info->port_attr.show      = show_port_type;
 	info->port_attr.store     = set_port_type;
+	sysfs_attr_init(&info->port_attr.attr);
 
 	err = device_create_file(&dev->pdev->dev, &info->port_attr);
 	if (err) {