lib/sysroot-upgrader: add some 'nullable' annotations

diff --git a/src/libostree/ostree-sysroot-upgrader.c b/src/libostree/ostree-sysroot-upgrader.c
index b8d2d0c9c76e6931232fdd65e4c5c6d5cef0bbf8..bbfed034948afe612f803b920bd1217ac291753e 100644 (file)
--- a/src/libostree/ostree-sysroot-upgrader.c
+++ b/src/libostree/ostree-sysroot-upgrader.c
@@ -323,7 +323,7 @@ ostree_sysroot_upgrader_new_for_os_with_flags (OstreeSysroot              *sysro
  * ostree_sysroot_upgrader_get_origin:
  * @self: Sysroot
  *
- * Returns: (transfer none): The origin file, or %NULL if unknown
+ * Returns: (transfer none) (nullable): The origin file, or %NULL if unknown.
  */
 GKeyFile *
 ostree_sysroot_upgrader_get_origin (OstreeSysrootUpgrader *self)
@@ -335,7 +335,7 @@ ostree_sysroot_upgrader_get_origin (OstreeSysrootUpgrader *self)
  * ostree_sysroot_upgrader_dup_origin:
  * @self: Sysroot
  *
- * Returns: (transfer full): A copy of the origin file, or %NULL if unknown
+ * Returns: (transfer full) (nullable): A copy of the origin file, or %NULL if unknown.
  */
 GKeyFile *
 ostree_sysroot_upgrader_dup_origin (OstreeSysrootUpgrader *self)
@@ -388,7 +388,7 @@ ostree_sysroot_upgrader_set_origin (OstreeSysrootUpgrader *self,
  * ostree_sysroot_upgrader_get_origin_description:
  * @self: Upgrader
  *
- * Returns: A one-line descriptive summary of the origin, or %NULL if unknown
+ * Returns: (transfer full) (nullable): A one-line descriptive summary of the origin, or %NULL if unknown.
  */
 char *
 ostree_sysroot_upgrader_get_origin_description (OstreeSysrootUpgrader *self)