--- linux-mm/include/asm-i386/uaccess.h.old	2006-01-29 18:37:02.000000000 -0500
+++ linux-mm/include/asm-i386/uaccess.h	2006-01-29 18:37:35.000000000 -0500
@@ -197,8 +197,8 @@ extern void __put_user_8(void);
 
 #define put_user(x,ptr)						\
 ({	int __ret_pu;						\
-	__chk_user_ptr(ptr);					\
 	__typeof__(*(ptr)) __pu_val = x;			\
+	__chk_user_ptr(ptr);					\
 	switch(sizeof(*(ptr))) {				\
 	case 1: __put_user_1(__pu_val, ptr); break;		\
 	case 2: __put_user_2(__pu_val, ptr); break;		\