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-rw-r--r--types/wlr_surface.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/types/wlr_surface.c b/types/wlr_surface.c
index ca10e08b..9503b8d4 100644
--- a/types/wlr_surface.c
+++ b/types/wlr_surface.c
@@ -1016,8 +1016,12 @@ struct wlr_surface *wlr_surface_surface_at(struct wlr_surface *surface,
}
if (wlr_surface_point_accepts_input(surface, sx, sy)) {
- *sub_x = sx;
- *sub_y = sy;
+ if (sub_x) {
+ *sub_x = sx;
+ }
+ if (sub_y) {
+ *sub_y = sy;
+ }
return surface;
}