[PATCH] fix "compat ioctl consolidation" for "move job

A little fix which is needed if both the "compat ioctl consolidation" and
"move job control fields from task_struct to signal_struct" patches are
applied.

fs/compat_ioctl.c

@@ -1574,7 +1574,7 @@ static int vt_check(struct file *file)
 	 * To have permissions to do most of the vt ioctls, we either have
 	 * to be the owner of the tty, or super-user.
 	 */
-	if (current->tty == tty || capable(CAP_SYS_ADMIN))
+	if (process_tty(current) == tty || capable(CAP_SYS_ADMIN))
 		return 1;
 	return 0;                                                    
 }