From 79913fb446f2f66bfd898acf90e9b3afa5a4b54a Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Wed, 16 Sep 2020 12:40:31 +0200
Subject: [PATCH] l3cfg: allow %NULL argument for nm_l3_config_data_ref()

It's often convenient not to require the caller to check for
%NULL. On the other hand, there are cases where having a %NULL instance
is a bug, so gracefully accepting %NULL might hide bugs.

Still, change it.
---
 src/nm-l3-config-data.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/nm-l3-config-data.c b/src/nm-l3-config-data.c
index c13fdbc249..a5080b0bb8 100644
--- a/src/nm-l3-config-data.c
+++ b/src/nm-l3-config-data.c
@@ -434,8 +434,10 @@ nm_l3_config_data_new (NMDedupMultiIndex *multi_idx,
 const NML3ConfigData *
 nm_l3_config_data_ref (const NML3ConfigData *self)
 {
-	nm_assert (_NM_IS_L3_CONFIG_DATA (self, TRUE));
-	((NML3ConfigData *) self)->ref_count++;
+	if (self) {
+		nm_assert (_NM_IS_L3_CONFIG_DATA (self, TRUE));
+		((NML3ConfigData *) self)->ref_count++;
+	}
 	return self;
 }