Re: [PATCH][next] vdpa/mlx5: Fix resource leak of mgtdev due to incorrect kfree

From: Stefano Garzarella
Date: Tue Apr 13 2021 - 03:30:00 EST


On Mon, Apr 12, 2021 at 05:28:04PM +0100, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Static analysis is reporting a memory leak on mgtdev, it appears
that the wrong object is being kfree'd. Fix this by kfree'ing
mgtdev rather than mdev.

Addresses-Coverity: ("Resource leak")
Fixes: c8a2d4c73e70 ("vdpa/mlx5: Enable user to add/delete vdpa device")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 10c5fef3c020..25533db01f5f 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -2089,7 +2089,7 @@ static int mlx5v_probe(struct auxiliary_device *adev,
return 0;

reg_err:
- kfree(mdev);
+ kfree(mgtdev);
return err;
}

--
2.30.2


Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>