[libgda] Fixes for build after commit f029d10d75

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 19aa083162875efe5d719efc5bffcf2198f68b50
Author: Daniel Espinosa Ortiz <esodan gmail com>
Date:   Fri Feb 22 15:07:53 2019 -0600

    Fixes for build after commit f029d10d75

 libgda/gda-db-column.c | 2 +-
 libgda/gda-db-fkey.c   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libgda/gda-db-column.c b/libgda/gda-db-column.c
index fd51968e7..12356edab 100644
--- a/libgda/gda-db-column.c
+++ b/libgda/gda-db-column.c
@@ -590,7 +590,7 @@ void
 gda_db_column_set_name (GdaDbColumn *self,
                         const gchar *name)
 {
-  g_return_val_if_fail (self, NULL);
+  g_return_if_fail (self);
   GdaDbColumnPrivate *priv = gda_db_column_get_instance_private (self);
 
   g_free (priv->mp_name);
diff --git a/libgda/gda-db-fkey.c b/libgda/gda-db-fkey.c
index 8dd5a1f07..3974de5d9 100644
--- a/libgda/gda-db-fkey.c
+++ b/libgda/gda-db-fkey.c
@@ -339,7 +339,7 @@ gda_db_fkey_write_node (GdaDbBuildable  *buildable,
 {
   g_return_val_if_fail (buildable, FALSE);
   g_return_val_if_fail (rootnode,FALSE);
-  g_return_val_if_fail (error == NULL || *error == NULL, FASLE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
 
   GdaDbFkey *self = GDA_DB_FKEY (buildable);
   GdaDbFkeyPrivate *priv = gda_db_fkey_get_instance_private (self);
@@ -413,7 +413,7 @@ gda_db_fkey_get_ondelete (GdaDbFkey *self)
 GdaDbFkeyReferenceAction
 gda_db_fkey_get_ondelete_id (GdaDbFkey *self)
 {
-  g_return_val_if_fail (self, NULL);
+  g_return_val_if_fail (self, GDA_DB_FKEY_NO_ACTION);
 
   GdaDbFkeyPrivate *priv = gda_db_fkey_get_instance_private (self);