--- a/arch/x86/kernel/i387.c	2008-04-17 11:49:44.000000000 +0900
+++ b/arch/x86/kernel/i387.c	2008-06-30 13:22:57.000000000 +0900
@@ -130,7 +130,7 @@
 		void *kbuf, void __user *ubuf)
 {
 	if (!cpu_has_fxsr)
-		return -ENODEV;
+		return -EIO;
 
 	init_fpu(target);
 
@@ -145,7 +145,7 @@
 	int ret;
 
 	if (!cpu_has_fxsr)
-		return -ENODEV;
+		return -EIO;
 
 	init_fpu(target);
 	set_stopped_child_used_math(target);