[MIPS] Fixes for uaccess.h with gcc >= 4.0.1

    
It seems current get_user() incorrectly sign-extend an unsigned int
value on 64bit kernel.  I think this is because '(__typeof__(val))'
cast in final assignment.  I suppose the cast should be
'(__typeof__(*(addr))'.
    
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index 7a553e9d44d3..b96f3e0f3933 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -233,7 +233,7 @@ do {									\
 #define __get_user_check(x,ptr,size)                                    \
 ({                                                                      \
         long __gu_err = -EFAULT;                                        \
-        const void __user * __gu_ptr = (ptr);                           \
+        const __typeof__(*(ptr)) __user * __gu_ptr = (ptr);             \
                                                                         \
         if (likely(access_ok(VERIFY_READ,  __gu_ptr, size)))            \
                 __get_user_common((x), size, __gu_ptr);                 \
@@ -258,7 +258,7 @@ do {									\
         : "=r" (__gu_err), "=r" (__gu_tmp)                              \
         : "0" (0), "o" (__m(addr)), "i" (-EFAULT));                     \
                                                                         \
-        (val) = (__typeof__(val)) __gu_tmp;                             \
+        (val) = (__typeof__(*(addr))) __gu_tmp;                         \
 }
 
 /*
@@ -284,7 +284,7 @@ do {									\
         "       .previous                                       \n"     \
         : "=r" (__gu_err), "=&r" (__gu_tmp)                             \
         : "0" (0), "r" (addr), "i" (-EFAULT));                          \
-        (val) = __gu_tmp;                                               \
+        (val) = (__typeof__(*(addr))) __gu_tmp;                         \
 }
 
 /*