Ticket #1917: ngx_hash.c.patch

ngx_hash.c

@@ -696 +696 @@
     ha->dns_wc_head_hash = ngx_pcalloc(ha->temp_pool,
                                        sizeof(ngx_array_t) * ha->hsize);
     if (ha->dns_wc_head_hash == NULL) {
+        ngx_pfree(ha->keys_hash);   /* release previous memory allocation */
         return NGX_ERROR;
     }
 
     ha->dns_wc_tail_hash = ngx_pcalloc(ha->temp_pool,
                                        sizeof(ngx_array_t) * ha->hsize);
     if (ha->dns_wc_tail_hash == NULL) {
+        ngx_pfree(ha->dns_wc_tail_hash);    /* release tail_hash    */
+        ngx_pfree(ha->keys_hash);           /* release keys_hash    */
         return NGX_ERROR;
     }