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| author |   weiping zhang <zwp10758@gmail.com> | 2017-11-29 09:23:01 +0800 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2017-12-01 16:55:32 +0200 |
| commit | e60ea67bb60459b95a50a156296041a13e0e380e (patch) | |
| tree | 3a84c30892f84e70e9ea5c7c24e1ee55ddb8ca0c /drivers/virtio | |
| parent | fw_cfg: fix driver remove (diff) | |
| download | linux-dev-e60ea67bb60459b95a50a156296041a13e0e380e.tar.xz linux-dev-e60ea67bb60459b95a50a156296041a13e0e380e.zip | |
virtio: release virtio index when fail to device_register
index can be reused by other virtio device.
Cc: stable@vger.kernel.org
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 48230a5e12f2..bf7ff3934d7f 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -333,6 +333,8 @@ int register_virtio_device(struct virtio_device *dev) /* device_register() causes the bus infrastructure to look for a * matching driver. */ err = device_register(&dev->dev); + if (err) + ida_simple_remove(&virtio_index_ida, dev->index); out: if (err) virtio_add_status(dev, VIRTIO_CONFIG_S_FAILED); |