diff --git a/tools/libs/guest/xg_offline_page.c b/tools/libs/guest/xg_offline_page.c
index c42b973363..43bbb5c051 100644
--- a/tools/libs/guest/xg_offline_page.c
+++ b/tools/libs/guest/xg_offline_page.c
@@ -181,18 +181,14 @@ static int backup_ptes(xen_pfn_t table_mfn, int offset,
 
     if (backup->max == backup->cur)
     {
-        void *orig = backup->entries;
+        void *entries = realloc(backup->entries, backup->max * 2 *
+                                sizeof(struct pte_backup_entry));
 
-        backup->entries = realloc(
-            orig, backup->max * 2 * sizeof(struct pte_backup_entry));
-
-        if (backup->entries == NULL)
-        {
-            free(orig);
+        if (entries == NULL)
             return -1;
-        }
-        else
-            backup->max *= 2;
+
+        backup->entries = entries;
+        backup->max *= 2;
     }
 
     backup->entries[backup->cur].table_mfn = table_mfn;