From: Josef 'Jeff' Sipek <jeff.sipek@dovecot.fi>
Date: Tue, 6 Jun 2017 09:19:22 +0000 (+0300)
Subject: lib: io_remove(NULL) and io_remove_closed(NULL) should be no-ops
X-Git-Tag: 2.3.0.rc1~987
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df1c1ff470f0e15911953638de0a5e10015ef5a2;p=thirdparty%2Fdovecot%2Fcore.git

lib: io_remove(NULL) and io_remove_closed(NULL) should be no-ops
---

diff --git a/src/lib/ioloop.c b/src/lib/ioloop.c
index f6bd7ab845..af5f7ac9a8 100644
--- a/src/lib/ioloop.c
+++ b/src/lib/ioloop.c
@@ -167,11 +167,17 @@ static void io_remove_full(struct io **_io, bool closed)
 
 void io_remove(struct io **io)
 {
+	if (*io == NULL)
+		return;
+
 	io_remove_full(io, FALSE);
 }
 
 void io_remove_closed(struct io **io)
 {
+	if (*io == NULL)
+		return;
+
 	i_assert(((*io)->condition & IO_NOTIFY) == 0);
 
 	io_remove_full(io, TRUE);