diff --git a/include/iscsi.h b/include/iscsi.h
index af7e1ba..9753d22 100644
--- a/include/iscsi.h
+++ b/include/iscsi.h
@@ -33,6 +33,7 @@ struct iscsi_context;
 struct sockaddr;
 
 #define MAX_STRING_SIZE (255)
+#define PAGE_SIZE (4096)
 
 /*
  * Syntax for normal and portal/discovery URLs.
@@ -533,6 +534,7 @@ iscsi_task_mgmt_target_cold_reset_async(struct iscsi_context *iscsi,
 
 struct iscsi_data {
        int size;
+       int alloc_size;
        unsigned char *data;
 };
 
diff --git a/lib/init.c b/lib/init.c
index c23d25d..840e163 100644
--- a/lib/init.c
+++ b/lib/init.c
@@ -469,7 +469,7 @@ iscsi_destroy_url(struct iscsi_url *iscsi_url)
 	struct iscsi_context *iscsi = iscsi_url->iscsi;
 	memset(iscsi_url, 0, sizeof(struct iscsi_url));
 	if (iscsi != NULL)
-		iscsi_free(iscsi_url->iscsi, iscsi_url);
+		iscsi_free(iscsi, iscsi_url);
 	else
 		free(iscsi_url);
 }