[libgda/wip/lantw/fix-return-value-error] gda-vprovider: Fix return value error

[Ting-Wei Lan <lantw src gnome org>]

commit 459f9cd8922ea671b2d8ca1bac28a7cd5478d45f
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Wed Oct 3 23:27:35 2018 +0800

    gda-vprovider: Fix return value error

 libgda/sqlite/virtual/gda-vprovider-data-model.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgda/sqlite/virtual/gda-vprovider-data-model.c 
b/libgda/sqlite/virtual/gda-vprovider-data-model.c
index c201fc21f..81c3dea3d 100644
--- a/libgda/sqlite/virtual/gda-vprovider-data-model.c
+++ b/libgda/sqlite/virtual/gda-vprovider-data-model.c
@@ -308,7 +308,7 @@ virtual_filtered_data_free (VirtualFilteredData *data)
 static VirtualFilteredData *
 virtual_filtered_data_ref (VirtualFilteredData *data)
 {
-       g_return_if_fail (data != NULL);
+       g_return_val_if_fail (data != NULL, NULL);
        data->refcount ++;
        return data;
 }