1 files changed, 11 insertions, 9 deletions

diff --git a/include/asm-m68k/uaccess.h b/include/asm-m68k/uaccess.h
index f5cedf19cf68..2ffd87b0a769 100644
--- a/include/asm-m68k/uaccess.h
+++ b/include/asm-m68k/uaccess.h
@@ -42,6 +42,7 @@ struct exception_table_entry
 ({                                                      \
     int __pu_err;                                       \
     typeof(*(ptr)) __pu_val = (x);                      \
+    __chk_user_ptr(ptr);                                \
     switch (sizeof (*(ptr))) {                          \
     case 1:                                             \
         __put_user_asm(__pu_err, __pu_val, ptr, b);     \
@@ -91,6 +92,7 @@ __asm__ __volatile__					\
 ({                                                              \
     int __gu_err;                                               \
     typeof(*(ptr)) __gu_val;                                    \
+    __chk_user_ptr(ptr);                                        \
     switch (sizeof(*(ptr))) {                                   \
     case 1:                                                     \
         __get_user_asm(__gu_err, __gu_val, ptr, b, "=d");       \
@@ -105,7 +107,7 @@ __asm__ __volatile__					\
         __gu_err = __constant_copy_from_user(&__gu_val, ptr, 8);  \
         break;                                                  \
     default:                                                    \
-        __gu_val = 0;                                           \
+        __gu_val = (typeof(*(ptr)))0;                           \
         __gu_err = __get_user_bad();                            \
         break;                                                  \
     }                                                           \
@@ -134,7 +136,7 @@ __asm__ __volatile__				\
      : "m"(*(ptr)), "i" (-EFAULT), "0"(0))
 
 static inline unsigned long
-__generic_copy_from_user(void *to, const void *from, unsigned long n)
+__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
     unsigned long tmp;
     __asm__ __volatile__
@@ -189,7 +191,7 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n)
 }
 
 static inline unsigned long
-__generic_copy_to_user(void *to, const void *from, unsigned long n)
+__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
     unsigned long tmp;
     __asm__ __volatile__
@@ -264,7 +266,7 @@ __generic_copy_to_user(void *to, const void *from, unsigned long n)
          : "d0", "memory")
 
 static inline unsigned long
-__constant_copy_from_user(void *to, const void *from, unsigned long n)
+__constant_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
     switch (n) {
     case 0:
@@ -520,7 +522,7 @@ __constant_copy_from_user(void *to, const void *from, unsigned long n)
 #define __copy_from_user_inatomic __copy_from_user
 
 static inline unsigned long
-__constant_copy_to_user(void *to, const void *from, unsigned long n)
+__constant_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
     switch (n) {
     case 0:
@@ -766,7 +768,7 @@ __constant_copy_to_user(void *to, const void *from, unsigned long n)
  */
 
 static inline long
-strncpy_from_user(char *dst, const char *src, long count)
+strncpy_from_user(char *dst, const char __user *src, long count)
 {
     long res;
     if (count == 0) return count;
@@ -799,11 +801,11 @@ strncpy_from_user(char *dst, const char *src, long count)
  *
  * Return 0 on exception, a value greater than N if too long
  */
-static inline long strnlen_user(const char *src, long n)
+static inline long strnlen_user(const char __user *src, long n)
 {
         long res;
 
-        res = -(long)src;
+        res = -(unsigned long)src;
         __asm__ __volatile__
                 ("1:\n"
                  "   tstl %2\n"
@@ -842,7 +844,7 @@ static inline long strnlen_user(const char *src, long n)
  */
 
 static inline unsigned long
-clear_user(void *to, unsigned long n)
+clear_user(void __user *to, unsigned long n)
 {
     __asm__ __volatile__
         ("   tstl %1\n"