diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index e756131..c070777 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -763,7 +763,6 @@
 	u16 vendor;
 	u16 device;
 	u8 type;
-	u8 sec;
 	int i;
 
 	class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
@@ -792,11 +791,8 @@
 	type = read_pci_config_byte(num, slot, func,
 				    PCI_HEADER_TYPE);
 
-	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
-		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
-		if (sec > num)
-			early_pci_scan_bus(sec);
-	}
+	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE)
+		return -1;
 
 	if (!(type & 0x80))
 		return -1;
@@ -819,8 +815,10 @@
 
 void __init early_quirks(void)
 {
+	int bus;
 	if (!early_pci_allowed())
 		return;
 
-	early_pci_scan_bus(0);
+	for (bus = 0; bus < 256; bus++)
+		early_pci_scan_bus(bus);
 }