From mboxrd@z Thu Jan 1 00:00:00 1970 From: weiping zhang Subject: [PATCH] virtio: release virtio index when fail to device_register Date: Wed, 29 Nov 2017 09:23:01 +0800 Message-ID: <20171129012301.GA6637@localhost.didichuxing.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: mst@redhat.com, jasowang@redhat.com Cc: virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.org index can be reused by other virtio device. Signed-off-by: weiping zhang --- drivers/virtio/virtio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 48230a5..bf7ff39 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); -- 2.9.4