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-rw-r--r--include/migration/vmstate.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index c38b00a6f1..6233fe2e5b 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -985,12 +985,14 @@ void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
 
 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
 
+/* Returns: 0 on success, -1 on failure */
 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
                                    const VMStateDescription *vmsd,
                                    void *base, int alias_id,
                                    int required_for_version,
                                    Error **errp);
 
+/* Returns: 0 on success, -1 on failure */
 static inline int vmstate_register(DeviceState *dev, int instance_id,
                                    const VMStateDescription *vmsd,
                                    void *opaque)