diff --git a/hw/xfree86/os-support/bus/linuxPci.c b/hw/xfree86/os-support/bus/linuxPci.c
index a60df25..dfb7af7 100644
--- a/hw/xfree86/os-support/bus/linuxPci.c
+++ b/hw/xfree86/os-support/bus/linuxPci.c
@@ -392,22 +392,26 @@ pointer
 xf86MapDomainMemory(int ScreenNum, int Flags, struct pci_device *dev,
 		    ADDRESS Base, unsigned long Size)
 {
-    int fd = -1;
-    pointer addr;
+    pointer addr = NULL;
 
     /*
      * We use /proc/bus/pci on non-legacy addresses or if the Linux sysfs
      * legacy_mem interface is unavailable.
      */
-    if ((Base > 1024*1024) || ((fd = linuxOpenLegacy(dev, "legacy_mem")) < 0))
-	return linuxMapPci(ScreenNum, Flags, dev, Base, Size,
+    if (Base <= 1024*1024) {
+	int fd = linuxOpenLegacy(dev, "legacy_mem");
+
+	if (fd >= 0) {
+	    addr = mmap(NULL, Size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, Base);
+	    close(fd);
+	}
+    }
+
+    if (addr == NULL || addr == MAP_FAILED)
+	addr = linuxMapPci(ScreenNum, Flags, dev, Base, Size,
 			   PCIIOC_MMAP_IS_MEM);
-    else
-	addr = mmap(NULL, Size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, Base);
 
-    if (fd >= 0)
-	close(fd);
-    if (addr == NULL || addr == MAP_FAILED) {
+    if ((Base <= 1024*1024) && (addr == NULL || addr == MAP_FAILED)) {
 	perror("mmap failure");
 	FatalError("xf86MapDomainMem():  mmap() failure\n");
     }