10095 unchecked return value in segvn_pagelock()

*** 9078,9088 ****
                                      ptob(svd->anon_index));
                          } else {
                                  ptag = (void *)seg;
                                  paddr = addr;
                          }
!                         (*preclaim_callback)(ptag, paddr, len, *ppp, rw, 0);
                  } else {
                          ASSERT((*ppp)[npages] == PCACHE_SHWLIST ||
                              IS_SWAPFSVP((*ppp)[npages]->p_vnode));
                          len = lpgeaddr - lpgaddr;
                          npages = btop(len);
--- 9078,9088 ----
                                      ptob(svd->anon_index));
                          } else {
                                  ptag = (void *)seg;
                                  paddr = addr;
                          }
!                         (void) preclaim_callback(ptag, paddr, len, *ppp, rw, 0);
                  } else {
                          ASSERT((*ppp)[npages] == PCACHE_SHWLIST ||
                              IS_SWAPFSVP((*ppp)[npages]->p_vnode));
                          len = lpgeaddr - lpgaddr;
                          npages = btop(len);