s390/uaccess: remove pointless access_ok() checks

access_ok() always returns 'true' on s390. Therefore all calls
are quite pointless and can be removed.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index 96bc83ea5c90..51bcaa0fdeef 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -16,9 +16,6 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
         if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
                 oparg = 1 << oparg;
 
-        if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-                return -EFAULT;
-
         pagefault_disable();
         ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval);
         pagefault_enable();
@@ -40,9 +37,6 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
                                                 u32 oldval, u32 newval)
 {
-        if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-                return -EFAULT;
-
         return uaccess.futex_atomic_cmpxchg(uval, uaddr, oldval, newval);
 }