diff options
Diffstat (limited to 'arch/m68k/include/asm/uaccess_no.h')
| -rw-r--r-- | arch/m68k/include/asm/uaccess_no.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h index 0134008bf539..6bc80c35726d 100644 --- a/arch/m68k/include/asm/uaccess_no.h +++ b/arch/m68k/include/asm/uaccess_no.h @@ -71,26 +71,29 @@ extern int __put_user_bad(void); #define get_user(x, ptr) \ ({ \ int __gu_err = 0; \ - typeof(x) __gu_val = 0; \ switch (sizeof(*(ptr))) { \ case 1: \ - __get_user_asm(__gu_err, __gu_val, ptr, b, "=d"); \ + __get_user_asm(__gu_err, x, ptr, b, "=d"); \ break; \ case 2: \ - __get_user_asm(__gu_err, __gu_val, ptr, w, "=r"); \ + __get_user_asm(__gu_err, x, ptr, w, "=r"); \ break; \ case 4: \ - __get_user_asm(__gu_err, __gu_val, ptr, l, "=r"); \ + __get_user_asm(__gu_err, x, ptr, l, "=r"); \ break; \ - case 8: \ - memcpy((void *) &__gu_val, ptr, sizeof (*(ptr))); \ + case 8: { \ + union { \ + u64 l; \ + __typeof__(*(ptr)) t; \ + } __gu_val; \ + memcpy(&__gu_val.l, ptr, sizeof(__gu_val.l)); \ + (x) = __gu_val.t; \ break; \ + } \ default: \ - __gu_val = 0; \ __gu_err = __get_user_bad(); \ break; \ } \ - (x) = (typeof(*(ptr))) __gu_val; \ __gu_err; \ }) #define __get_user(x, ptr) get_user(x, ptr) |