12276 smatch-clean sockfs

*** 1138,1151 ****
                  first = B_FALSE;
          }
  
          alloc = kmem_alloc(sz, KM_SLEEP);
          URI_RD_ADD(uri, rdp, sz, -1);
-         if (rdp == NULL) {
-                 error = ENOMEM;
-                 goto fail;
-         }
  
          if (uri->hash != URI_TEMP && uri->count > nca_max_cache_size) {
                  uri_delete(uri);
                  uri->hash = URI_TEMP;
          }
--- 1138,1147 ----
*** 1374,1387 ****
  
                          releasef(sfvp->sfv_fd);
                          fp = NULL;
                  }
                  URI_RD_ADD(uri, rdp, cnt, -1);
-                 if (rdp == NULL) {
-                         error = ENOMEM;
-                         goto fail;
-                 }
                  data = alloc;
                  alloc = NULL;
                  rdp->data.kmem = data;
                  total_count += cnt;
                  if (uri->hash != URI_TEMP && total_count > nca_max_cache_size) {
--- 1370,1379 ----
*** 1403,1416 ****
                           * File descriptor, if any bytes left save vnode_t.
                           */
                          if (len > cnt) {
                                  /* More file data so add it */
                                  URI_RD_ADD(uri, rdp, len - cnt, off);
-                                 if (rdp == NULL) {
-                                         error = ENOMEM;
-                                         goto fail;
-                                 }
                                  rdp->data.vnode = vp;
  
                                  /* Send vnode data out the connection */
                                  error = uri_rd_response(so, uri, rdp, first);
                          } else {
--- 1395,1404 ----