Support callers which sometimes run unrelated to display code

* src/xdisp.c (update_redisplay_ticks): Don't abort callers
with w == NULL if we are called outside of display engine code,
and don't update the tick count in that case.

diff --git a/src/xdisp.c b/src/xdisp.c
index d14955af41562536a80132230b8d066d96019283..1ba9132e8c002b9f35e8517f5f007c9f0b148f77 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -17199,6 +17199,11 @@ update_redisplay_ticks (int ticks, struct window *w)
       cwindow = w;
       window_ticks = 0;
     }
+  /* Some callers can be run in contexts unrelated to redisplay, so
+     don't abort them and don't update the tick count in those cases.  */
+  if (!w && !redisplaying_p)
+    return;
+
   if (ticks > 0)
     window_ticks += ticks;
   if (max_redisplay_ticks > 0 && window_ticks > max_redisplay_ticks)