1 files changed, 3 insertions, 1 deletions
diff --git a/include/chardev/char.h b/include/chardev/char.h
index 1604ea9143..66dde4637e 100644
--- a/include/chardev/char.h
+++ b/include/chardev/char.h
@@ -65,7 +65,9 @@ struct Chardev {
  *
  * @opts see qemu-config.c for a list of valid options
  *
- * Returns: a new character backend
+ * Returns: on success: a new character backend
+ *          otherwise:  NULL; @errp specifies the error
+ *                            or left untouched in case of help option
  */
 Chardev *qemu_chr_new_from_opts(QemuOpts *opts,
                                 Error **errp);