kernel/util: Require passing a list_link to list_remove_link.

If something other than a list_link is passed, an explicit cast
will now be needed.

No functional change intended.

headers/private/kernel/util/list.h

@@ -54,7 +54,7 @@ extern void list_init(struct list *list);
 extern void list_init_etc(struct list *list, int32 offset);
 extern void list_add_link_to_head(struct list *list, void *_link);
 extern void list_add_link_to_tail(struct list *list, void *_link);
-extern void list_remove_link(void *_link);
+extern void list_remove_link(struct list_link *_link);
 extern void *list_get_next_item(struct list *list, void *item);
 extern void *list_get_prev_item(struct list *list, void *item);
 extern void *list_get_last_item(struct list *list);

src/system/kernel/fs/node_monitor.cpp

@@ -339,7 +339,7 @@ NodeMonitorService::_RemoveListener(monitor_listener *listener)
 
 	// remove it from the listener and I/O context lists
 	monitor->listeners.Remove(listener);
-	list_remove_link(listener);
+	list_remove_link(&listener->context_link);
 
 	if (dynamic_cast<UserNodeListener*>(listener->listener) != NULL) {
 		// This is a listener we copied ourselves in UpdateUserListener(),

src/system/kernel/thread.cpp

@@ -2604,7 +2604,7 @@ wait_for_thread_etc(thread_id id, uint32 flags, bigtime_t timeout,
 		// remove our death entry now.
 		thread = Thread::GetAndLock(id);
 		if (thread != NULL) {
-			list_remove_link(&death);
+			list_remove_link(&death.link);
 			thread->UnlockAndReleaseReference();
 		} else {
 			// The thread is already gone, so we need to wait uninterruptibly

src/system/kernel/util/list.cpp

@@ -81,10 +81,8 @@ list_add_link_to_tail(struct list *list, void *_link)
  */
 
 void
-list_remove_link(void *_link)
+list_remove_link(list_link *link)
 {
-	list_link *link = (list_link *)_link;
-
 	link->next->prev = link->prev;
 	link->prev->next = link->next;