pc-bios/s390-ccw/netmain: Fix error messages with regards to the TFTP server

The code in net_init_ip() currently bails out early if "rc" is less
than 0, so the if-statements that check for negative "rc" codes to
print out some specific error messages with regards to the TFTP server
are never reached. Move them earlier to bring that dead code back to
life.

Reviewed-by: Jared Rossi <jrossi@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Tested-by: Jared Rossi <jrossi@linux.ibm.com>
Message-ID: <20250116115826.192047-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

Author: huth

pc-bios/s390-ccw/netmain.c

@@ -168,6 +168,14 @@ static int net_init_ip(filename_ip_t *fn_ip)
         if (fn_ip->ip_version == 4) {
             set_ipv4_address(fn_ip->own_ip);
         }
+    } else if (rc == -2) {
+        printf("ARP request to TFTP server (%d.%d.%d.%d) failed\n",
+               (fn_ip->server_ip >> 24) & 0xFF, (fn_ip->server_ip >> 16) & 0xFF,
+               (fn_ip->server_ip >>  8) & 0xFF, fn_ip->server_ip & 0xFF);
+        return -102;
+    } else if (rc == -4 || rc == -3) {
+        puts("Can't obtain TFTP server IP address");
+        return -107;
     } else {
         puts("Could not get IP address");
         return -101;
@@ -183,17 +191,6 @@ static int net_init_ip(filename_ip_t *fn_ip)
         printf("  Using IPv6 address: %s\n", ip6_str);
     }
 
-    if (rc == -2) {
-        printf("ARP request to TFTP server (%d.%d.%d.%d) failed\n",
-               (fn_ip->server_ip >> 24) & 0xFF, (fn_ip->server_ip >> 16) & 0xFF,
-               (fn_ip->server_ip >>  8) & 0xFF, fn_ip->server_ip & 0xFF);
-        return -102;
-    }
-    if (rc == -4 || rc == -3) {
-        puts("Can't obtain TFTP server IP address");
-        return -107;
-    }
-
     printf("  Using TFTP server: ");
     if (fn_ip->ip_version == 4) {
         printf("%d.%d.%d.%d\n",