diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 8534cb53ff60f9e1cd8606bd7947a058b34a437b..3cf72977d01292bbea4492568d85277a8ba6680f 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1142,11 +1142,11 @@ void __init trap_init(void)
 	int i;
 
 #ifdef CONFIG_EISA
-	void __iomem *p = ioremap(0x0FFFD9, 4);
+	void __iomem *p = early_ioremap(0x0FFFD9, 4);
 	if (readl(p) == 'E'+('I'<<8)+('S'<<16)+('A'<<24)) {
 		EISA_bus = 1;
 	}
-	iounmap(p);
+	early_iounmap(p, 4);
 #endif
 
 #ifdef CONFIG_X86_LOCAL_APIC