illumos gate

Build errors with NULL pointer:

    In file included from ../../common/sys/param.h:48:0,
                     from ../../common/sys/sysmacros.h:37,
                     from ../../common/io/bofi.c:31:
    ../../common/io/bofi.c: In function 'bofi_attach':
    ../../common/sys/null.h:32:14: error: passing argument 6 of 'ddi_create_minor_node' makes integer from pointer without a cast [-Werror=int-conversion]
     #define NULL ((void *)0)
                  ^
    ../../common/io/bofi.c:628:19: note: in expansion of macro 'NULL'
           DDI_PSEUDO, NULL) == DDI_FAILURE)
                       ^~~~
    In file included from ../../common/io/bofi.c:46:0:
    ../../common/sys/sunddi.h:1564:1: note: expected 'int' but argument is of type 'void *'
     ddi_create_minor_node(dev_info_t *dip, char *name, int spec_type,
     ^~~~~~~~~~~~~~~~~~~~~
    ../../common/io/bofi.c: In function 'bofi_post_event':
    ../../common/io/bofi.c:4481:32: error: comparison between pointer and integer [-Werror]
         if ((ep->errstate.msg_time == NULL ||
                                    ^~
    ../../common/io/bofi.c: In function 'bofi_fm_ereport_callback':
    ../../common/io/bofi.c:4538:30: error: comparison between pointer and integer [-Werror]
        if (ep->errstate.msg_time != NULL)
                                  ^~
    cc1: all warnings being treated as errors