linux-kernel - [PATCH 30/39] don't always use EFAULT on __put_user

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Message-Id: <1214602486-17080-31-git-send-email-gcosta@redhat.com>
Date:	Fri, 27 Jun 2008 18:34:37 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	tglx@...utronix.de, mingo@...e.hu, x86@...nel.org
Subject: [PATCH 30/39] don't always use EFAULT on __put_user_size.

Let the user of the macro specify the desired return.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 include/asm-x86/uaccess_64.h |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h
index 8130876..6532d63 100644
--- a/include/asm-x86/uaccess_64.h
+++ b/include/asm-x86/uaccess_64.h
@@ -37,7 +37,7 @@ extern void __put_user_bad(void);
 #define __put_user_nocheck(x, ptr, size)		\
 ({							\
 	int __pu_err;					\
-	__put_user_size((x), (ptr), (size), __pu_err);	\
+	__put_user_size((x), (ptr), (size), __pu_err, -EFAULT);	\
 	__pu_err;					\
 })
 
@@ -65,22 +65,22 @@ extern void __put_user_bad(void);
 	__pu_err;						\
 })
 
-#define __put_user_size(x, ptr, size, retval)				\
+#define __put_user_size(x, ptr, size, retval, errret)			\
 do {									\
 	retval = 0;							\
 	__chk_user_ptr(ptr);						\
 	switch (size) {							\
 	case 1:								\
-		__put_user_asm(x, ptr, retval, "b", "b", "iq", -EFAULT);\
+		__put_user_asm(x, ptr, retval, "b", "b", "iq", errret);\
 		break;							\
 	case 2:								\
-		__put_user_asm(x, ptr, retval, "w", "w", "ir", -EFAULT);\
+		__put_user_asm(x, ptr, retval, "w", "w", "ir", errret);\
 		break;							\
 	case 4:								\
-		__put_user_asm(x, ptr, retval, "l", "k", "ir", -EFAULT);\
+		__put_user_asm(x, ptr, retval, "l", "k", "ir", errret);\
 		break;							\
 	case 8:								\
-		__put_user_asm(x, ptr, retval, "q", "", "Zr", -EFAULT);	\
+		__put_user_asm(x, ptr, retval, "q", "", "Zr", errret);	\
 		break;							\
 	default:							\
 		__put_user_bad();					\
-- 
1.5.5.1

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