diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 4b08a393ebcbf8f126b609ffc39ccd558c1e2f44..5a21e5dc94cbae7f8c35d989aba039afcb5c4f77 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -2169,7 +2169,7 @@ static const u8 config_dev_csum_flags[] = {
 int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
 			      struct mlx4_config_dev_params *params)
 {
-	struct mlx4_config_dev config_dev;
+	struct mlx4_config_dev config_dev = {0};
 	int err;
 	u8 csum_mask;