5253 kmem_alloc/kmem_zalloc won't fail with KM_SLEEP
5254 getrbuf won't fail with KM_SLEEP

*** 117,128 ****
  int
  _nsc_init_raw(int maxdevs)
  {
          _nsc_raw_files =
              kmem_zalloc(sizeof (*_nsc_raw_files) * maxdevs, KM_SLEEP);
-         if (!_nsc_raw_files)
-                 return (ENOMEM);
  
          _nsc_raw_maxdevs = maxdevs;
          _nsc_raw_majors = NULL;
  
          mutex_init(&_nsc_raw_lock, NULL, MUTEX_DRIVER, NULL);
--- 117,126 ----
*** 302,316 ****
                  return (ENXIO);
          }
  
          plen = strlen(path) + 1;
          spath = kmem_alloc(plen, KM_SLEEP);
-         if (spath == NULL) {
-                 cmn_err(CE_WARN,
-                     "nskern: unable to alloc memory in _raw_open()");
-                 return (ENOMEM);
-         }
  
          (void) strcpy(spath, path);
  
          /*
           * Lookup the vnode to extract the dev_t info,
--- 300,309 ----