From: Xie Yongji <xieyongji@bytedance.com>
To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com
Cc: amit@kernel.org, arei.gonglei@huawei.com, airlied@linux.ie,
kraxel@redhat.com, jean-philippe@linaro.org, ohad@wizery.com,
bjorn.andersson@linaro.org, david@redhat.com, vgoyal@redhat.com,
miklos@szeredi.hu, lucho@ionkov.net, asmadeus@codewreck.org,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: [RFC PATCH 11/15] virtio-balloon: Handle virtio_device_ready() failure
Date: Mon, 17 May 2021 17:34:24 +0800 [thread overview]
Message-ID: <20210517093428.670-12-xieyongji@bytedance.com> (raw)
In-Reply-To: <20210517093428.670-1-xieyongji@bytedance.com>
Now virtio_device_ready() will return error if we get
invalid status. Let's handle this case in both probe
and resume paths.
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
---
drivers/virtio/virtio_balloon.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 7565970c3901..4f183dd901b3 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -997,12 +997,17 @@ static int virtballoon_probe(struct virtio_device *vdev)
goto out_unregister_oom;
}
- virtio_device_ready(vdev);
+ err = virtio_device_ready(vdev);
+ if (err)
+ goto out_unregister_page_report;
if (towards_target(vb))
virtballoon_changed(vdev);
return 0;
+out_unregister_page_report:
+ if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_REPORTING))
+ page_reporting_unregister(&vb->pr_dev_info);
out_unregister_oom:
if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
unregister_oom_notifier(&vb->oom_nb);
@@ -1096,7 +1101,11 @@ static int virtballoon_restore(struct virtio_device *vdev)
if (ret)
return ret;
- virtio_device_ready(vdev);
+ ret = virtio_device_ready(vdev);
+ if (ret) {
+ vdev->config->del_vqs(vdev);
+ return ret;
+ }
if (towards_target(vb))
virtballoon_changed(vdev);
--
2.11.0
next prev parent reply other threads:[~2021-05-17 9:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-17 9:34 [RFC PATCH 00/15] Handle virtio_device_ready() failure Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 01/15] virtio_config: Add return value to virtio_device_ready() Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 02/15] virtio-blk: Handle virtio_device_ready() failure Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 03/15] virtio_console: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 04/15] virtio_crypto: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 05/15] drm/virtio: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 06/15] virtio-iommu: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 07/15] virtio-net: " Xie Yongji
2021-05-17 9:34 ` Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 08/15] rpmsg: virtio: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 10/15] " Xie Yongji
2021-05-17 9:34 ` Xie Yongji [this message]
2021-05-17 9:34 ` [RFC PATCH 12/15] virtio-input: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 13/15] virtio-mem: " Xie Yongji
2021-05-17 9:48 ` David Hildenbrand
2021-05-17 10:08 ` Yongji Xie
2021-05-17 9:34 ` [RFC PATCH 14/15] virtiofs: " Xie Yongji
2021-05-17 9:34 ` [RFC PATCH 15/15] 9p/trans_virtio: " Xie Yongji
2021-05-17 9:53 ` asmadeus
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