main: rototiller_quiesce() before fb_free()

Make sure there's no outstanding workers potentially scribbling into a
page before tearing down the fb and its pages.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
index 9e207ca..c54a94f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -76,6 +76,7 @@ static void glimmer_go(GtkButton *button, gpointer user_data)
 	if (glimmer.fb) {
 		pthread_cancel(glimmer.thread);
 		pthread_join(glimmer.thread, NULL);
+		rototiller_quiesce();
 
 		glimmer.fb = fb_free(glimmer.fb);
 		glimmer.fb_settings = settings_free(glimmer.fb_settings);