1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c
index 67858be4b52b..99176094500b 100644
--- a/arch/x86/pci/ce4100.c
+++ b/arch/x86/pci/ce4100.c
@@ -257,6 +257,7 @@ static int ce4100_conf_read(unsigned int seg, unsigned int bus,
 {
         int i;
 
+        WARN_ON(seg);
         if (bus == 1) {
                 for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
                         if (bus1_fixups[i].dev_func == devfn &&
@@ -282,6 +283,7 @@ static int ce4100_conf_write(unsigned int seg, unsigned int bus,
 {
         int i;
 
+        WARN_ON(seg);
         if (bus == 1) {
                 for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
                         if (bus1_fixups[i].dev_func == devfn &&