[PATCH v3] ethernet :mellanox :mlx4: Replace pci_pool_alloc by pci_pool_zalloc

[Souptick Joarder]

In mlx4_alloc_cmd_mailbox(), pci_pool_alloc() followed by memset will be
replaced by pci_pool_zalloc()

Signed-off-by: Souptick joarder <jrdr.li...@gmail.com>
---
v3:
  - Fixed alignment issues

v2:
  - Address comment from sergei
    Alignment was not proper

 drivers/net/ethernet/mellanox/mlx4/cmd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c 
b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index e36bebc..a49072b4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -2679,15 +2679,13 @@ struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct 
mlx4_dev *dev)
        if (!mailbox)
                return ERR_PTR(-ENOMEM);

-       mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
-                                     &mailbox->dma);
+       mailbox->buf = pci_pool_zalloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
+                                      &mailbox->dma);
        if (!mailbox->buf) {
                kfree(mailbox);
                return ERR_PTR(-ENOMEM);
        }

-       memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
-
        return mailbox;
 }
 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
--
1.9.1