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9p/trans_virtio: reset virtio device on remove 

On device shutdown/removal, virtio drivers need to trigger a reset on
the device; if this is neglected, the virtio core will complain about
non-zero device status.

This patch resets the status when the 9p virtio driver is removed
from the system by calling vdev->config->reset on the virtio_device
to send a reset to the host virtio device.

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Pierre Morel 2015-07-09 14:58:26 +02:00 committed by Michael S. Tsirkin
parent 1b568d934e
commit ea52bf8eda
1 changed files with 1 additions and 0 deletions
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1
net/9p/trans_virtio.c
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@ -704,6 +704,7 @@ static void p9_virtio_remove(struct virtio_device *vdev)
mutex_unlock(&virtio_9p_lock);
vdev->config->reset(vdev);
vdev->config->del_vqs(vdev);
sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);