From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sat, 29 Oct 2022 21:59:31 +0000 (+0900)
Subject: udev: fix for parsing MAC address
X-Git-Tag: v252~13
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=269585dcc8becd42332af9ebe09c96d6b57e3571;p=thirdparty%2Fsystemd.git

udev: fix for parsing MAC address

Fixes a bug introduced by 5bbcfbaa11a92732f9bbc8d5f77e9311e6ac3d56.

Fixes #25181.
---

diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 13ef700b1ea..75041237003 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -1087,7 +1087,7 @@ static int get_link_info(sd_device *dev, LinkInfo *info) {
         r = sd_device_get_sysattr_value(dev, "address", &s);
         if (r < 0 && r != -ENOENT)
                 return r;
-        if (r > 0) {
+        if (r >= 0) {
                 r = parse_hw_addr(s, &info->hw_addr);
                 if (r < 0)
                         log_device_debug_errno(dev, r, "Failed to parse 'address' sysattr, ignoring: %m");