Re: [PATCH] IB/mlx5: Fix memory leak in mlx5_ib_create_flow

From: Gustavo A. R. Silva
Date: Fri Jun 08 2018 - 19:11:59 EST



mutex_lock(&dev->flow_db->lock);
@@ -3640,6 +3646,9 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp,
kfree(ucmd);
kfree(handler);
return ERR_PTR(err);
+free_ucmd:
+ kfree(ucmd);
+ return ERR_PTR(err);
}

This hunk is a bit wonky, can we do this instead? handle never needs
to be freed.

destroy_ft:
put_flow_table(dev, ft_prio, false);
if (ft_prio_tx)
put_flow_table(dev, ft_prio_tx, false);
unlock:
mutex_unlock(&dev->flow_db->lock);
kfree(dst);
free_ucmd:
kfree(ucmd);
return ERR_PTR(err);
}



Sure thing. I'll send v2 shortly.

Thanks for the feedback.
--
Gustavo