From 8224c6cf9b35ebe2591fab7a72744782109a1380 Mon Sep 17 00:00:00 2001
From: paco <paco@voltanet.io>
Date: Mon, 11 Jun 2018 20:02:58 +0200
Subject: [PATCH] lib: null dereference (Coverity 1469895)

Signed-off-by: F. Aragon <paco@voltanet.io>
---
 lib/vty.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/vty.c b/lib/vty.c
index 2d8112727a..280b2ace51 100644
--- a/lib/vty.c
+++ b/lib/vty.c
@@ -120,9 +120,11 @@ bool vty_set_include(struct vty *vty, const char *regexp)
 	bool ret = true;
 	char errbuf[256];
 
-	if (!regexp && vty->filter) {
-		regfree(&vty->include);
-		vty->filter = false;
+	if (!regexp) {
+		if (vty->filter) {
+			regfree(&vty->include);
+			vty->filter = false;
+		}
 		return true;
 	}