From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Fri, 25 Sep 2020 01:17:57 +0000 (+0200)
Subject: lib-smtp: smtp-client-transaction - Make smtp_client_transaction_mail_free(NULL)... 
X-Git-Tag: 2.3.18~129
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=02079622d1da36495705eb070057f38f1596443b;p=thirdparty%2Fdovecot%2Fcore.git

lib-smtp: smtp-client-transaction - Make smtp_client_transaction_mail_free(NULL) a no-op.
---

diff --git a/src/lib-smtp/smtp-client-transaction.c b/src/lib-smtp/smtp-client-transaction.c
index 0c4a58f80c..11465a0d67 100644
--- a/src/lib-smtp/smtp-client-transaction.c
+++ b/src/lib-smtp/smtp-client-transaction.c
@@ -75,10 +75,13 @@ static void
 smtp_client_transaction_mail_free(struct smtp_client_transaction_mail **_mail)
 {
 	struct smtp_client_transaction_mail *mail = *_mail;
-	struct smtp_client_transaction *trans = mail->trans;
 
+	if (mail == NULL)
+		return;
 	*_mail = NULL;
 
+	struct smtp_client_transaction *trans = mail->trans;
+
 	if (mail->cmd_mail_from != NULL)
 		smtp_client_command_abort(&mail->cmd_mail_from);
 	DLLIST2_REMOVE(&trans->mail_head, &trans->mail_tail, mail);