[patch] drivers/char/serial.c OOPS on boot

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Alan, it is possible for serial_pnp_guess_board to receive a NULL
pointer in dev->sysdata which is dereferenced with 'res' and generates
an OOPS. Please apply the below patch to your current tree.

     --- serial.c.old Mon Jun 5 06:15:50 2000
     +++ serial.c Mon Jun 5 01:14:22 2000
     @@ -4907,7 +4907,7 @@
                     !(check_compatible_id(dev)))
                             return 1;

     - if (res->next)
     + if (!res || res->next)
                     return 1;

             for (resa = res->alt; resa; resa = resa->alt) {

-d

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