XXXX don't fail device detach when it's physically removed

*** 15055,15065 ****
                  /* Get full devname */
                  devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
                  (void) ddi_deviname(cdip, devname);
                  /* Clean cache */
                  (void) devfs_clean(parent, devname + 1,
!                     DV_CLEAN_FORCE);
                  kmem_free(devname, MAXNAMELEN + 1);
          }
          if (rpip != NULL) {
                  if (MDI_PI_IS_OFFLINE(rpip)) {
                          rval = DDI_SUCCESS;
--- 15055,15065 ----
                  /* Get full devname */
                  devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
                  (void) ddi_deviname(cdip, devname);
                  /* Clean cache */
                  (void) devfs_clean(parent, devname + 1,
!                     DV_CLEAN_FORCE|DV_DEVI_GONE);
                  kmem_free(devname, MAXNAMELEN + 1);
          }
          if (rpip != NULL) {
                  if (MDI_PI_IS_OFFLINE(rpip)) {
                          rval = DDI_SUCCESS;
*** 15125,15135 ****
                  /* Get full devname */
                  devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
                  (void) ddi_deviname(cdip, devname);
                  /* Clean cache */
                  (void) devfs_clean(pdip, devname + 1,
!                     DV_CLEAN_FORCE);
                  kmem_free(devname, MAXNAMELEN + 1);
          }
  
          rval = ndi_devi_offline(cdip, flags);
  
--- 15125,15135 ----
                  /* Get full devname */
                  devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
                  (void) ddi_deviname(cdip, devname);
                  /* Clean cache */
                  (void) devfs_clean(pdip, devname + 1,
!                     DV_CLEAN_FORCE|DV_DEVI_GONE);
                  kmem_free(devname, MAXNAMELEN + 1);
          }
  
          rval = ndi_devi_offline(cdip, flags);