simplify compat_sys_timerfd

Just thought this is easier to read.

Acked-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/compat.c

@@ -2230,21 +2230,16 @@ asmlinkage long compat_sys_signalfd(int ufd,
 asmlinkage long compat_sys_timerfd(int ufd, int clockid, int flags,
 				   const struct compat_itimerspec __user *utmr)
 {
-	long res;
 	struct itimerspec t;
 	struct itimerspec __user *ut;
 
-	res = -EFAULT;
 	if (get_compat_itimerspec(&t, utmr))
-		goto err_exit;
+		return -EFAULT;
 	ut = compat_alloc_user_space(sizeof(*ut));
-	if (copy_to_user(ut, &t, sizeof(t)) )
-		goto err_exit;
+	if (copy_to_user(ut, &t, sizeof(t)))
+		return -EFAULT;
 
-	res = sys_timerfd(ufd, clockid, flags, ut);
-err_exit:
-	return res;
+	return sys_timerfd(ufd, clockid, flags, ut);
 }
 
 #endif /* CONFIG_TIMERFD */
-