From: Josef 'Jeff' Sipek <jeff.sipek@dovecot.fi>
Date: Tue, 19 Sep 2017 10:21:07 +0000 (+0300)
Subject: lib: pool_unref(NULL) shoud be a no-op
X-Git-Tag: 2.3.0.rc1~979
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77eae37a92168171293471dd5eeaab037de54f4a;p=thirdparty%2Fdovecot%2Fcore.git

lib: pool_unref(NULL) shoud be a no-op
---

diff --git a/src/lib/mempool.h b/src/lib/mempool.h
index fefac79ebe..8814707de1 100644
--- a/src/lib/mempool.h
+++ b/src/lib/mempool.h
@@ -133,7 +133,8 @@ static inline void pool_ref(pool_t pool)
 
 static inline void pool_unref(pool_t *pool)
 {
-	(*pool)->v->unref(pool);
+	if (*pool != NULL)
+		(*pool)->v->unref(pool);
 }
 
 /* These functions are only for pools created with pool_alloconly_create(): */