Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 include/chardev/char-fe.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/chardev/char-fe.h b/include/chardev/char-fe.h
index 54f0d61d32..2211913734 100644
--- a/include/chardev/char-fe.h
+++ b/include/chardev/char-fe.h
@@ -166,6 +166,9 @@ void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...)
  * is active; return the #GSource's tag.  If it is disconnected,
  * or without associated Chardev, return 0.
  *
+ * Note that you are responsible to update the front-end sources if
+ * you are switching the main context with qemu_chr_fe_set_handlers().
+ *
  * Returns: the source tag
  */
 guint qemu_chr_fe_add_watch(CharBackend *be, GIOCondition cond,
-- 
2.20.1.519.g8feddda32c