[Qemu-devel] [PATCH] pci-assign: Fix warning from coverity (argument cannot be negative)

[Stefan Weil <sw@weilnetz.de>]

Coverity warns because function monitor_fd_param can return a negative
value which might be passed to function read.

This won't happen because dev->config_fd will only be negative (-1)
when local_err is set.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
 hw/i386/kvm/pci-assign.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/kvm/pci-assign.c b/hw/i386/kvm/pci-assign.c
index 9db7c77..f3d145b 100644
--- a/hw/i386/kvm/pci-assign.c
+++ b/hw/i386/kvm/pci-assign.c
@@ -554,7 +554,7 @@ static void get_real_device(AssignedDevice *pci_dev, Error **errp)
     if (pci_dev->configfd_name && *pci_dev->configfd_name) {
         dev->config_fd = monitor_fd_param(cur_mon, pci_dev->configfd_name,
                                           &local_err);
-        if (local_err) {
+        if (dev->config_fd < 0) {
             error_propagate(errp, local_err);
             return;
         }
-- 
1.7.10.4