From e960f0da90803cbbd4f227af68c954c1d5c83925 Mon Sep 17 00:00:00 2001
From: Joshua Colp <jcolp@digium.com>
Date: Thu, 28 May 2009 14:51:43 +0000
Subject: [PATCH] Fix a bug in stringfields where it did not actually free the
 pools of memory.

(closes issue #15074)
Reported by: pj


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@197538 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/utils.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/main/utils.c b/main/utils.c
index 59a29ce5ac..fe2d083d58 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -1560,7 +1560,11 @@ int __ast_string_field_init(struct ast_string_field_mgr *mgr, struct ast_string_
 	}
 
 	if (needed < 0) {		/* reset all pools */
-		/* nothing to do */
+		if (*pool_head == NULL) {
+			ast_log(LOG_WARNING, "trying to reset empty pool\n");
+			return -1;
+		}
+		cur = *pool_head;
 	} else if (mgr->embedded_pool) { /* preserve the embedded pool */
 		preserve = mgr->embedded_pool;
 		cur = *pool_head;