From 874fb4df5108783c4a4c250619b3159a1ef1df67 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <pj@pehjota.net>
Date: Wed, 25 Oct 2017 10:52:19 -0400
Subject: mq_tree_remove*(): Link node's next sibling or parent to last child

---
(limited to 'src/tree.c')

diff --git a/src/tree.c b/src/tree.c
index a279fd8..2e0e875 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -183,14 +183,16 @@ mq_tree_remove_allocated(MqTree *node)
 {
 	MqTree *child;
 
-	/* Link previous sibling or parent to children. */
+	/* Link siblings and/or parent to children (may be NULL). */
 	if (node->prev) {
 		node->prev->next = node->first_child;
 	} else {
 		node->parent->first_child = node->first_child;
-		if (!node->next) {
-			node->parent->last_child = node->last_child;
-		}
+	}
+	if (node->next) {
+		node->next->prev = node->last_child;
+	} else {
+		node->parent->last_child = node->last_child;
 	}
 	
 	/* Link children to siblings (may be NULL). */
--
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