From: Stephan Bosch <stephan.bosch@dovecot.fi>
Date: Mon, 20 Nov 2017 00:26:21 +0000 (+0100)
Subject: lib: llist: Fixed setting (after)->next->prev in DLLIST2_INSERT_AFTER_FULL.
X-Git-Tag: 2.3.0.rc1~383
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ab7221dac60f0bda81925f5bfc694d5bb2e8bf2;p=thirdparty%2Fdovecot%2Fcore.git

lib: llist: Fixed setting (after)->next->prev in DLLIST2_INSERT_AFTER_FULL.

This function was not yet used, so the problem did not affect existing code.
---

diff --git a/src/lib/llist.h b/src/lib/llist.h
index 4517117eb1..8a52e87335 100644
--- a/src/lib/llist.h
+++ b/src/lib/llist.h
@@ -52,6 +52,8 @@
 	STMT_START { \
 	(item)->prev = (after); \
 	(item)->next = (after)->next; \
+	if ((after)->next != NULL) \
+		(after)->next->prev = (item); \
 	(after)->next = (item); \
 	if (*(tail) == (after)) \
 		*(tail) = (item); \