app_jack: fix datastore memory leak in error handling path.

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Merged revisions 360360 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 360361 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@360362 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_jack.c

@@ -904,8 +904,14 @@ static int enable_jack_hook(struct ast_channel *chan, char *data)
 return_error:
 	ast_channel_unlock(chan);
 
-	if (jack_data)
+	if (jack_data) {
 		destroy_jack_data(jack_data);
+	}
+
+	if (datastore) {
+		datastore->data = NULL;
+		ast_datastore_free(datastore);
+	}
 
 	return -1;
 }