[libgda] batch: fix retreive of private struct

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit dd5216085e54587317f5a5a98c30af1d961b45fd
Author: Daniel Espinosa <esodan gmail com>
Date:   Thu Sep 6 08:41:59 2018 -0500

    batch: fix retreive of private struct

 libgda/gda-batch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgda/gda-batch.c b/libgda/gda-batch.c
index d00b2001c..ed2332df2 100644
--- a/libgda/gda-batch.c
+++ b/libgda/gda-batch.c
@@ -185,10 +185,10 @@ gda_batch_copy (GdaBatch *orig)
 
        g_return_val_if_fail (GDA_IS_BATCH (orig), NULL);
        GdaBatchPrivate *opriv = gda_batch_get_instance_private (orig);
-       GdaBatchPrivate *priv = gda_batch_get_instance_private (batch);
 
        obj = g_object_new (GDA_TYPE_BATCH, NULL);
        batch = (GdaBatch *) obj;
+       GdaBatchPrivate *priv = gda_batch_get_instance_private (batch);
        for (list = opriv->statements; list; list = list->next) {
                GdaStatement *copy;
 
@@ -207,9 +207,9 @@ gda_batch_dispose (GObject *object)
 
        g_return_if_fail (object != NULL);
        g_return_if_fail (GDA_IS_BATCH (object));
-       GdaBatchPrivate *priv = gda_batch_get_instance_private (batch);
 
        batch = GDA_BATCH (object);
+       GdaBatchPrivate *priv = gda_batch_get_instance_private (batch);
        if (priv->statements) {
                g_slist_foreach (priv->statements, (GFunc) g_object_unref, NULL);
                g_slist_free (priv->statements);