net/mlx4_core: destroy workqueue when driver fails to register

When driver registration fails, we need to clean up the resources allocated
before. mlx4_core missed destroying the workqueue allocated.

This patch destroys the workqueue when registration fails.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 5789ea2c934d..01fc6515384d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2635,6 +2635,8 @@ static int __init mlx4_init(void)
                 return -ENOMEM;
 
         ret = pci_register_driver(&mlx4_driver);
+        if (ret < 0)
+                destroy_workqueue(mlx4_wq);
         return ret < 0 ? ret : 0;
 }