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vhost: release virtqueue objects in error path

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vhost_dev_start function does not release virtqueue objects when
event_notifier_init() function fails. Release virtqueue objects
and log a message about function failure.

Signed-off-by: Prasad Pandit <pjp@fedoraproject.org>
Message-Id: <20230529114333.31686-3-ppandit@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: f9a09ca3ea ("vhost: add support for configure interrupt")
Reviewed-by: Peter Xu <peterx@redhat.com>
Cc: qemu-stable@nongnu.org
Acked-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 77ece20ba0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Prasad Pandit 2023-05-29 17:13:33 +05:30 • committed by Michael Tokarev
parent c10525874c
commit 46fe2deaef
1 changed files with 2 additions and 1 deletions
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3
hw/virtio/vhost.c
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@ -1956,7 +1956,8 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings)
r = event_notifier_init( r = event_notifier_init(
&hdev->vqs[VHOST_QUEUE_NUM_CONFIG_INR].masked_config_notifier, 0); &hdev->vqs[VHOST_QUEUE_NUM_CONFIG_INR].masked_config_notifier, 0);
if (r < 0) { if (r < 0) {
return r; VHOST_OPS_DEBUG(r, "event_notifier_init failed");
goto fail_vq;
} }
event_notifier_test_and_clear( event_notifier_test_and_clear(
&hdev->vqs[VHOST_QUEUE_NUM_CONFIG_INR].masked_config_notifier); &hdev->vqs[VHOST_QUEUE_NUM_CONFIG_INR].masked_config_notifier);