app_stack: Add missing unlock in off-nominal path of STACK_PEEK function.

ASTERISK-23620 #close
Reported by: Bradley Watkins
Patches:
      ASTERISK-23620_unlock_oldlist.patch (license #5021) patch uploaded by Bradley Watkins
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Merged revisions 412225 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 412226 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 412227 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@412228 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/apps/app_stack.c b/apps/app_stack.c
index 72caed8cbd8169e6c70776129e0685d3255e7248..ba3b97cd1820e857bf22c998de3db0a17f389ae9 100644 (file)
--- a/apps/app_stack.c
+++ b/apps/app_stack.c
@@ -873,6 +873,7 @@ static int stackpeek_read(struct ast_channel *chan, const char *cmd, char *data,
                if (!ast_true(args.suppress)) {
                        ast_log(LOG_ERROR, "Stack peek of '%s' is more stack frames than I have\n", args.n);
                }
+               AST_LIST_UNLOCK(oldlist);
                ast_channel_unlock(chan);
                return -1;
        }