[PATCH weston] window: fix NULL pointer dereference

[Mariusz Ceier]

NULL pointer dereference happens when input->focus_widget == NULL
and input->grab == NULL.

Signed-off-by: Mariusz Ceier <mceier+wayland at gmail.com>
---
 clients/window.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/clients/window.c b/clients/window.c
index cbfe12f..9933cb9 100644
--- a/clients/window.c
+++ b/clients/window.c
@@ -2819,14 +2819,17 @@ pointer_handle_motion(void *data, struct wl_pointer *pointer,
 		widget = input->grab;
 	else
 		widget = input->focus_widget;
-	if (widget && widget->motion_handler)
-		cursor = widget->motion_handler(input->focus_widget,
-						input, time, sx, sy,
-						widget->user_data);
-	else
-		cursor = input->focus_widget->default_cursor;
+	if (widget)
+	{
+		if (widget->motion_handler)
+			cursor = widget->motion_handler(input->focus_widget,
+							input, time, sx, sy,
+							widget->user_data);
+		else
+			cursor = widget->default_cursor;
+		input_set_pointer_image(input, cursor);
+	}
 
-	input_set_pointer_image(input, cursor);
 }
 
 static void
-- 
1.8.3.2