From cd8752baa400a8fb909da4f85a3792673cdfe982 Mon Sep 17 00:00:00 2001
From: Ehco <zh19960202@gmail.com>
Date: Wed, 8 Dec 2021 11:44:32 +0800
Subject: [PATCH] Update br/pkg/lightning/config/config.go

Co-authored-by: glorv <glorvs@163.com>
---
 br/pkg/lightning/config/config.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/br/pkg/lightning/config/config.go b/br/pkg/lightning/config/config.go
index a45d4e6f58fb8..d080d1bad16cf 100644
--- a/br/pkg/lightning/config/config.go
+++ b/br/pkg/lightning/config/config.go
@@ -577,7 +577,7 @@ func (sec *Security) RegisterMySQL() error {
 
 // DeregisterMySQL deregisters the TLS config with security.TLSConfigName
 func (sec *Security) DeregisterMySQL() {
-	if sec == nil {
+	if sec == nil || len(sec.CAPath) == 0 {
 		return
 	}
 	gomysql.DeregisterTLSConfig(sec.TLSConfigName)