From: Ondřej Surý <ondrej@sury.org>
Date: Tue, 9 Aug 2016 09:03:16 +0000 (+0200)
Subject: Fix segmentation fault in early shutdown from `quit()` in config
X-Git-Tag: v1.1.0~6^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0589e90c6b8c0dfa6c69cdcfbfb0269cc039232;p=thirdparty%2Fknot-resolver.git

Fix segmentation fault in early shutdown from `quit()` in config
---

diff --git a/daemon/engine.c b/daemon/engine.c
index 4f7a69f5c..ad852ba60 100644
--- a/daemon/engine.c
+++ b/daemon/engine.c
@@ -725,8 +725,13 @@ int engine_start(struct engine *engine, const char *config_path)
 
 void engine_stop(struct engine *engine)
 {
-	uv_timer_stop(engine->updater);
-	uv_close((uv_handle_t *)engine->updater, (uv_close_cb) free);
+	if (!engine) {
+		return;
+	}
+	if (engine->updater) {
+		uv_timer_stop(engine->updater);
+		uv_close((uv_handle_t *)engine->updater, (uv_close_cb) free);
+	}
 	uv_stop(uv_default_loop());
 }