From: Mohsin Kazmi <sykazmi@cisco.com>
Date: Tue, 1 Sep 2020 15:45:56 +0000 (+0200)
Subject: virtio: fix the NULL deference
X-Git-Tag: v21.01-rc0~51
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=c79d7353626f530de8bae436883622255e4ef9b2;p=vpp.git

virtio: fix the NULL deference

Type: fix

Change-Id: I8d55c2bfdd3c4607044370ebabf40cbac78b4996
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
---

diff --git a/src/vnet/devices/virtio/pci.c b/src/vnet/devices/virtio/pci.c
index 48771170531..307e73bea2e 100644
--- a/src/vnet/devices/virtio/pci.c
+++ b/src/vnet/devices/virtio/pci.c
@@ -1219,7 +1219,8 @@ virtio_pci_delete_if (vlib_main_t * vm, virtio_if_t * vif)
   if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ))
     vif->virtio_pci_func->del_queue (vm, vif, vif->max_queue_pairs * 2);
 
-  vif->virtio_pci_func->device_reset (vm, vif);
+  if (vif->virtio_pci_func)
+    vif->virtio_pci_func->device_reset (vm, vif);
 
   if (vif->hw_if_index)
     {