From: Stephan Bosch <stephan.bosch@dovecot.fi>
Date: Sun, 14 Oct 2018 11:45:56 +0000 (+0200)
Subject: lib-smtp: client: Make smtp_client_transaction_unref(NULL) a no-op.
X-Git-Tag: 2.3.5~106
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ea2e602ee72450cac52952c72e73ed88bf33cdbd;p=thirdparty%2Fdovecot%2Fcore.git

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

diff --git a/src/lib-smtp/smtp-client-transaction.c b/src/lib-smtp/smtp-client-transaction.c
index bd683e8527..28e457170d 100644
--- a/src/lib-smtp/smtp-client-transaction.c
+++ b/src/lib-smtp/smtp-client-transaction.c
@@ -405,6 +405,9 @@ void smtp_client_transaction_unref(struct smtp_client_transaction **_trans)
 
 	*_trans = NULL;
 
+	if (trans == NULL)
+		return;
+
 	i_assert(trans->refcount > 0);
 	if (--trans->refcount > 0)
 		return;