mlx4_en: Added missing iounmap upon releasing a device

Fixed a memory leak caused by missing iounmap when device
is being released.

Signed-off-by: Alexander Guller <alexg@mellanox.co.il>
Signed-off-by: Sharon Cohen <sharonc@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c
index 6bfea233a9f2..a06096fcc0b8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -176,6 +176,7 @@ static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr)
         flush_workqueue(mdev->workqueue);
         destroy_workqueue(mdev->workqueue);
         mlx4_mr_free(dev, &mdev->mr);
+        iounmap(mdev->uar_map);
         mlx4_uar_free(dev, &mdev->priv_uar);
         mlx4_pd_free(dev, mdev->priv_pdn);
         kfree(mdev);
@@ -223,7 +224,7 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
                          MLX4_PERM_LOCAL_WRITE |  MLX4_PERM_LOCAL_READ,
                          0, 0, &mdev->mr)) {
                 mlx4_err(mdev, "Failed allocating memory region\n");
-                goto err_uar;
+                goto err_map;
         }
         if (mlx4_mr_enable(mdev->dev, &mdev->mr)) {
                 mlx4_err(mdev, "Failed enabling memory region\n");
@@ -282,6 +283,9 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 
 err_mr:
         mlx4_mr_free(dev, &mdev->mr);
+err_map:
+        if (!mdev->uar_map)
+                iounmap(mdev->uar_map);
 err_uar:
         mlx4_uar_free(dev, &mdev->priv_uar);
 err_pd: