[libvirt] [PATCH v2 7/7] qemu_hostdev: Resolve Coverity issue

[John Ferlan]

Recent changes uncovered a possibility that 'last_processed_hostdev_vf'
was set to -1 in 'qemuPrepareHostdevPCIDevices' and would cause problems
in for loop end condition in the 'resetvfnetconfig' label if the
variable was never set to 'i' due to 'qemuDomainHostdevNetConfigReplace'
failure.
---
 src/qemu/qemu_hostdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_hostdev.c b/src/qemu/qemu_hostdev.c
index 9bdace1..f24d466 100644
--- a/src/qemu/qemu_hostdev.c
+++ b/src/qemu/qemu_hostdev.c
@@ -644,7 +644,8 @@ inactivedevs:
     }
 
 resetvfnetconfig:
-    for (i = 0; i < last_processed_hostdev_vf; i++) {
+    for (i = 0; last_processed_hostdev_vf != -1 &&
+                i < last_processed_hostdev_vf; i++) {
          virDomainHostdevDefPtr hostdev = hostdevs[i];
          if (hostdev->parent.type == VIR_DOMAIN_DEVICE_NET &&
              hostdev->parent.data.net) {
-- 
1.8.1.4