Always update the PnP checksum, even if the ident string is not being set.

diff --git a/src/util/makerom.pl b/src/util/makerom.pl
index 2bd8e1f..a7d5cc4 100755 (executable)
--- a/src/util/makerom.pl
+++ b/src/util/makerom.pl
@@ -88,10 +88,12 @@ sub pcipnpheaders ($$) {
                                = pack('v', oct($pci_device_id)) if ($pci_device_id);
                }
        }
-       if ($pnp_hdr_offset > 0 and defined($identoffset)) {
-               # Point to device id string at end of ROM image
-               substr($$romref, $pnp_hdr_offset+PNP_DEVICE_OFF, 2)
-                       = pack('v', $identoffset);
+       if ($pnp_hdr_offset > 0) {
+               if (defined($identoffset)) {
+                       # Point to device id string at end of ROM image
+                       substr($$romref, $pnp_hdr_offset+PNP_DEVICE_OFF, 2)
+                               = pack('v', $identoffset);
+               }
                substr($$romref, $pnp_hdr_offset+PNP_CHKSUM_OFF, 1) = "\x00";
                my $sum = unpack('%8C*', substr($$romref, $pnp_hdr_offset,
                        PNP_HDR_SIZE));