From b4f95c43fca75a3ee713fdf76fe55bb1e8ebba36 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Wed, 5 Oct 2016 12:32:13 +0000
Subject: [PATCH] Allow cmd_mouse_at return arguments to be NULL.

---
 cmd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmd.c b/cmd.c
index c643a346..f5889a7e 100644
--- a/cmd.c
+++ b/cmd.c
@@ -601,8 +601,10 @@ cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
 	if (y < wp->yoff || y >= wp->yoff + wp->sy)
 		return (-1);
 
-	*xp = x - wp->xoff;
-	*yp = y - wp->yoff;
+	if (xp != NULL)
+		*xp = x - wp->xoff;
+	if (yp != NULL)
+		*yp = y - wp->yoff;
 	return (0);
 }