From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 11 Dec 2023 16:27:09 +0000 (+0900)
Subject: network: do not trigger assertion when link_get_by_index() called with an invalid... 
X-Git-Tag: v256-rc1~1485^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2aed128369218eb280faade3209be99c5de5eb1;p=thirdparty%2Fsystemd.git

network: do not trigger assertion when link_get_by_index() called with an invalid ifindex

Should not change any behavior. Preparation for later commit.
---

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index a063696c82b..0162e2acb03 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)