Make certain ast_stopstream() sets the channel's stream members to NULL after...

 Make certain ast_stopstream() sets the channel's stream members to NULL after closing them. #7067 (jcomellas)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@24329 65c4cc65-6c06-0410-ace0-fbb531ad65f3

file.c

@@ -143,6 +143,7 @@ int ast_stopstream(struct ast_channel *tmp)
 	/* Stop a running stream if there is one */
 	if (tmp->stream) {
 		ast_closestream(tmp->stream);
+		tmp->stream = NULL;
 		if (tmp->oldwriteformat && ast_set_write_format(tmp, tmp->oldwriteformat))
 			ast_log(LOG_WARNING, "Unable to restore format back to %d\n", tmp->oldwriteformat);
 	}