Check error from asprintf() correctly for dhcpclass handling.

If asprintf() errors, it returns -1.  Check for that correctly and
return 20 on error.

[rawhide]

1 files changed, 1 insertions, 1 deletions

diff --git a/loader/net.c b/loader/net.c
index edb863695..eef0234c1 100644
--- a/loader/net.c
+++ b/loader/net.c
@@ -1172,7 +1172,7 @@ int writeEnabledNetInfo(iface_t *iface) {
             iface->vendorclass = "anaconda";
         } else {
             if (asprintf(&iface->vendorclass, "anaconda-%s %s %s",
-                         kv.sysname, kv.release, kv.machine)) {
+                         kv.sysname, kv.release, kv.machine) == -1 ) {
                 return 20;
             }
         }