[PATCH] virtio: fix crash if VIRTIO_NET_F_CTRL_VQ is not negotiated
From: <hidden>
Date: 2014-09-11 22:25:08
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
From: Damjan Marion <redacted> If VIRTIO_NET_F_CTRL_VQ is not negotiated hw->cvq will be NULL Signed-off-by: Damjan Marion <redacted> --- lib/librte_pmd_virtio/virtio_rxtx.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/librte_pmd_virtio/virtio_rxtx.c b/lib/librte_pmd_virtio/virtio_rxtx.c
index 0b10108..8cb635e 100644
--- a/lib/librte_pmd_virtio/virtio_rxtx.c
+++ b/lib/librte_pmd_virtio/virtio_rxtx.c@@ -328,8 +328,10 @@ virtio_dev_cq_start(struct rte_eth_dev *dev) struct virtio_hw *hw = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); - virtio_dev_vring_start(hw->cvq, VTNET_CQ); - VIRTQUEUE_DUMP((struct virtqueue *)hw->cvq); + if (hw->cvq) { + virtio_dev_vring_start(hw->cvq, VTNET_CQ); + VIRTQUEUE_DUMP((struct virtqueue *)hw->cvq); + } } void
--
2.1.0