1 files changed, 7 insertions, 4 deletions

diff --git a/arch/x86/pci/broadcom_bus.c b/arch/x86/pci/broadcom_bus.c
index 0846a5bbbfbd..ab8269b0da29 100644
--- a/arch/x86/pci/broadcom_bus.c
+++ b/arch/x86/pci/broadcom_bus.c
@@ -9,6 +9,7 @@
  * option) any later version.
  */
 
+#include <linux/acpi.h>
 #include <linux/delay.h>
 #include <linux/dmi.h>
 #include <linux/pci.h>
@@ -25,12 +26,14 @@ static void __devinit cnb20le_res(struct pci_dev *dev)
         u8 fbus, lbus;
         int i;
 
+#ifdef CONFIG_ACPI
         /*
-         * The x86_pci_root_bus_res_quirks() function already refuses to use
-         * this information if ACPI _CRS was used. Therefore, we don't bother
-         * checking if ACPI is enabled, and just generate the information
-         * for both the ACPI _CRS and no ACPI cases.
+         * We should get host bridge information from ACPI unless the BIOS
+         * doesn't support it.
          */
+        if (acpi_os_get_root_pointer())
+                return;
+#endif
 
         info = &pci_root_info[pci_root_num];
         pci_root_num++;