chan_unistim: Unlock mutex in rare OOM condition.

#ASTERISK-23792 #close
Reported by: Peter Whisker

Review: https://reviewboard.asterisk.org/r/3567/
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Merged revisions 414677 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 414678 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@414679 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c
index bdc353844ccb6658e0d1d036b415b8105cd159a4..6762db3915a235ae7459ce336fbffbb45e18bb11 100644 (file)
--- a/channels/chan_unistim.c
+++ b/channels/chan_unistim.c
@@ -6384,10 +6384,10 @@ static struct unistim_device *build_device(const char *cat, const struct ast_var
                }
                d = d->next;
        }
+       ast_mutex_unlock(&devicelock);
        if (!(lt = ast_calloc(1, sizeof(*lt)))) {
                return NULL;
        }
-       ast_mutex_unlock(&devicelock);
        if (create) {
                if (!(d = ast_calloc(1, sizeof(*d)))) {
                        return NULL;