From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bernard Iremonger Subject: [PATCH 1/2] virtio: fixed segmentation fault in queue_release Date: Tue, 20 Oct 2015 16:37:41 +0100 Message-ID: <1445355462-16521-1-git-send-email-bernard.iremonger@intel.com> References: To: dev@dpdk.org Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 96B7558F3 for ; Tue, 20 Oct 2015 17:37:50 +0200 (CEST) In-Reply-To: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" if input parameter vq is NULL, hw = vq->hw, causes a segmentation fault. Signed-off-by: Bernard Iremonger --- drivers/net/virtio/virtio_ethdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 465d3cd..147aca1 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -239,9 +239,10 @@ virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues) void virtio_dev_queue_release(struct virtqueue *vq) { - struct virtio_hw *hw = vq->hw; + struct virtio_hw *hw; if (vq) { + hw = vq->hw; /* Select and deactivate the queue */ VIRTIO_WRITE_REG_2(hw, VIRTIO_PCI_QUEUE_SEL, vq->queue_id); VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_QUEUE_PFN, 0); -- 1.9.1