[PATCH weston] Add a missing error check to weston_wm_handle_icon

[Dima Ryazanov]

This fixes a crash when launching Duke Nukem Forever.
(Sorry, I wish I had a less ridiculous test case...)

Signed-off-by: Dima Ryazanov <dima at gmail.com>
---
 xwayland/window-manager.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xwayland/window-manager.c b/xwayland/window-manager.c
index c307e199..e9c60c1e 100644
--- a/xwayland/window-manager.c
+++ b/xwayland/window-manager.c
@@ -1368,6 +1368,9 @@ weston_wm_handle_icon(struct weston_wm *wm, struct weston_wm_window *window)
 	                          wm->atom.net_wm_icon, XCB_ATOM_ANY, 0,
 	                          UINT32_MAX);
 	reply = xcb_get_property_reply(wm->conn, cookie, NULL);
+	if (!reply)
+		return;
+
 	length = xcb_get_property_value_length(reply);
 
 	/* This is in 32-bit words, not in bytes. */
-- 
2.14.3