if (agp_fe.current_controller == controller) {
                agp_fe.current_controller = NULL;
-               agp_fe.backend_acquired = FALSE;
+               agp_fe.backend_acquired = false;
                agp_backend_release(agp_bridge);
        }
        kfree(controller);
        }
 
        agp_fe.current_controller = NULL;
-       agp_fe.used_by_controller = FALSE;
+       agp_fe.used_by_controller = false;
        agp_backend_release(agp_bridge);
 }
 
 
        mutex_lock(&(agp_fe.agp_mutex));
 
-       if (agp_fe.backend_acquired != TRUE)
+       if (agp_fe.backend_acquired != true)
                goto out_eperm;
 
        if (!(test_bit(AGP_FF_IS_VALID, &priv->access_flags)))
 
        atomic_inc(&agp_bridge->agp_in_use);
 
-       agp_fe.backend_acquired = TRUE;
+       agp_fe.backend_acquired = true;
 
        controller = agp_find_controller_by_pid(priv->my_pid);
 
                controller = agp_create_controller(priv->my_pid);
 
                if (controller == NULL) {
-                       agp_fe.backend_acquired = FALSE;
+                       agp_fe.backend_acquired = false;
                        agp_backend_release(agp_bridge);
                        return -ENOMEM;
                }
                ret_val = -EINVAL;
                goto ioctl_out;
        }
-       if ((agp_fe.backend_acquired != TRUE) &&
+       if ((agp_fe.backend_acquired != true) &&
            (cmd != AGPIOC_ACQUIRE)) {
                ret_val = -EBUSY;
                goto ioctl_out;
 
 void agp_alloc_page_array(size_t size, struct agp_memory *mem)
 {
        mem->memory = NULL;
-       mem->vmalloc_flag = 0;
+       mem->vmalloc_flag = false;
 
        if (size <= 2*PAGE_SIZE)
                mem->memory = kmalloc(size, GFP_KERNEL | __GFP_NORETRY);
        if (mem->memory == NULL) {
                mem->memory = vmalloc(size);
-               mem->vmalloc_flag = 1;
+               mem->vmalloc_flag = true;
        }
 }
 EXPORT_SYMBOL(agp_alloc_page_array);