From c2aed128369218eb280faade3209be99c5de5eb1 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 12 Dec 2023 01:27:09 +0900
Subject: [PATCH] network: do not trigger assertion when link_get_by_index()
 called with an invalid ifindex

Should not change any behavior. Preparation for later commit.
---
 src/network/networkd-link.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index a063696c82..0162e2acb0 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -252,7 +252,9 @@ int link_get_by_index(Manager *m, int ifindex, Link **ret) {
         Link *link;
 
         assert(m);
-        assert(ifindex > 0);
+
+        if (ifindex <= 0)
+                return -EINVAL;
 
         link = hashmap_get(m->links_by_index, INT_TO_PTR(ifindex));
         if (!link)
-- 
2.25.1