pci modules: Check for pci_scan() == NULL.

Impact: we don't have to grab more details if pci_scan returns NULL

Signed-off-by: Sebastian Herbszt (herbszt@gmx.de)

1 files changed, 5 insertions, 1 deletions

diff --git a/com32/modules/pcitest.c b/com32/modules/pcitest.c
index 00647535..d13c3a6f 100644
--- a/com32/modules/pcitest.c
+++ b/com32/modules/pcitest.c
@@ -102,6 +102,10 @@ int main(int argc, char *argv[])
   /* Scanning to detect pci buses and devices */
   printf("PCI: Scanning PCI BUS\n");
   pci_domain = pci_scan();
+  if (!pci_domain) {
+	printf("PCI: no devices found!\n");
+	return 1;
+  }
 
   struct pci_device *pci_device;
   for_each_pci_func(pci_device, pci_domain) {
@@ -140,5 +144,5 @@ int main(int argc, char *argv[])
 
   /* display the pci devices we found */
   display_pci_devices(pci_domain);
-  return 1;
+  return 0;
 }