From: Tatsuo Ishii <ishii@sraoss.co.jp>
Date: Wed, 6 Apr 2022 05:50:56 +0000 (+0900)
Subject: Fix possible null pointer dereference per Coverity.
X-Git-Tag: V4_0_19~13
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=4923f16a228b65d43c3e3959aeb2f495fb0dd4a9;p=pgpool2.git

Fix possible null pointer dereference per Coverity.
---

diff --git a/src/protocol/child.c b/src/protocol/child.c
index 79e70e651..6d7c6688b 100644
--- a/src/protocol/child.c
+++ b/src/protocol/child.c
@@ -503,8 +503,12 @@ backend_cleanup(POOL_CONNECTION * volatile *frontend, POOL_CONNECTION_POOL * vol
 	 * Close frontend connection
 	 */
 	reset_connection();
-	pool_close(*frontend);
-	*frontend = NULL;
+
+	if (*frontend != NULL)
+	{
+		pool_close(*frontend);
+		*frontend = NULL;
+	}
 
 	if (cache_connection == false)
 	{