10082 intel_nhm is checking for NULL arrays

*** 22,31 ****
--- 22,35 ----
  /*
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
+ /*
+  * Copyright (c) 2018, Joyent, Inc.
+  */
+ 
  #include <sys/types.h>
  #include <sys/time.h>
  #include <sys/nvpair.h>
  #include <sys/cmn_err.h>
  #include <sys/cred.h>
*** 154,182 ****
          (void) nvlist_add_uint32(newdimm, "nrow", (uint32_t)nhm_dimm->nrow);
          (void) nvlist_add_uint32(newdimm, "width", (uint32_t)nhm_dimm->width);
          (void) nvlist_add_uint32(newdimm, "ranks", (uint32_t)nhm_dimm->nranks);
          inhm_rank(newdimm, nhm_dimm, node, channel, dimm,
              nhm_dimm->dimm_size / nhm_dimm->nranks);
!         if (nhm_dimm->manufacturer && nhm_dimm->manufacturer[0]) {
                  t = sizeof (nhm_dimm->manufacturer);
                  (void) strncpy(sbuf, nhm_dimm->manufacturer, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, "manufacturer", sbuf);
          }
!         if (nhm_dimm->serial_number && nhm_dimm->serial_number[0]) {
                  t = sizeof (nhm_dimm->serial_number);
                  (void) strncpy(sbuf, nhm_dimm->serial_number, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_SERIAL_ID, sbuf);
          }
!         if (nhm_dimm->part_number && nhm_dimm->part_number[0]) {
                  t = sizeof (nhm_dimm->part_number);
                  (void) strncpy(sbuf, nhm_dimm->part_number, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_PART, sbuf);
          }
!         if (nhm_dimm->revision && nhm_dimm->revision[0]) {
                  t = sizeof (nhm_dimm->revision);
                  (void) strncpy(sbuf, nhm_dimm->revision, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_REVISION, sbuf);
          }
--- 158,186 ----
          (void) nvlist_add_uint32(newdimm, "nrow", (uint32_t)nhm_dimm->nrow);
          (void) nvlist_add_uint32(newdimm, "width", (uint32_t)nhm_dimm->width);
          (void) nvlist_add_uint32(newdimm, "ranks", (uint32_t)nhm_dimm->nranks);
          inhm_rank(newdimm, nhm_dimm, node, channel, dimm,
              nhm_dimm->dimm_size / nhm_dimm->nranks);
!         if (nhm_dimm->manufacturer[0]) {
                  t = sizeof (nhm_dimm->manufacturer);
                  (void) strncpy(sbuf, nhm_dimm->manufacturer, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, "manufacturer", sbuf);
          }
!         if (nhm_dimm->serial_number[0]) {
                  t = sizeof (nhm_dimm->serial_number);
                  (void) strncpy(sbuf, nhm_dimm->serial_number, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_SERIAL_ID, sbuf);
          }
!         if (nhm_dimm->part_number[0]) {
                  t = sizeof (nhm_dimm->part_number);
                  (void) strncpy(sbuf, nhm_dimm->part_number, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_PART, sbuf);
          }
!         if (nhm_dimm->revision[0]) {
                  t = sizeof (nhm_dimm->revision);
                  (void) strncpy(sbuf, nhm_dimm->revision, t);
                  sbuf[t] = 0;
                  (void) nvlist_add_string(newdimm, FM_FMRI_HC_REVISION, sbuf);
          }