linux-kernel - [PATCH vhost v2 19/24] vdpa/mlx5: Forward error in suspend/resume device

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Message-ID: <20240626-stage-vdpa-vq-precreate-v2-19-560c491078df@nvidia.com>
Date: Wed, 26 Jun 2024 13:26:55 +0300
From: Dragos Tatulea <dtatulea@...dia.com>
To: "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Eugenio Pérez
	<eperezma@...hat.com>, Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky
	<leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>, Si-Wei Liu
	<si-wei.liu@...cle.com>
CC: <virtualization@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
	<linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>, Cosmin Ratiu
	<cratiu@...dia.com>, Zhu Yanjun <yanjun.zhu@...ux.dev>, Dragos Tatulea
	<dtatulea@...dia.com>
Subject: [PATCH vhost v2 19/24] vdpa/mlx5: Forward error in suspend/resume
 device

Start using the suspend/resume_vq() error return codes previously added.

Reviewed-by: Cosmin Ratiu <cratiu@...dia.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@...ux.dev>
Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index e65d488f7a08..ce1f6a1f36cd 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -3436,22 +3436,25 @@ static int mlx5_vdpa_suspend(struct vdpa_device *vdev)
 {
 	struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
 	struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
+	int err;
 
 	mlx5_vdpa_info(mvdev, "suspending device\n");
 
 	down_write(&ndev->reslock);
 	unregister_link_notifier(ndev);
-	suspend_vqs(ndev);
+	err = suspend_vqs(ndev);
 	mlx5_vdpa_cvq_suspend(mvdev);
 	mvdev->suspended = true;
 	up_write(&ndev->reslock);
-	return 0;
+
+	return err;
 }
 
 static int mlx5_vdpa_resume(struct vdpa_device *vdev)
 {
 	struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
 	struct mlx5_vdpa_net *ndev;
+	int err;
 
 	ndev = to_mlx5_vdpa_ndev(mvdev);
 
@@ -3459,10 +3462,11 @@ static int mlx5_vdpa_resume(struct vdpa_device *vdev)
 
 	down_write(&ndev->reslock);
 	mvdev->suspended = false;
-	resume_vqs(ndev);
+	err = resume_vqs(ndev);
 	register_link_notifier(ndev);
 	up_write(&ndev->reslock);
-	return 0;
+
+	return err;
 }
 
 static int mlx5_set_group_asid(struct vdpa_device *vdev, u32 group,

-- 
2.45.1