From cbf3cebbb01831dc237643c91ec47e014e0d89b7 Mon Sep 17 00:00:00 2001
From: o9000 <mrovi9000@gmail.com>
Date: Thu, 16 Nov 2017 12:14:09 +0100
Subject: [PATCH] Taskbar: thumbnails (XShmGetImage - avoid leaking in X)

---
 src/util/window.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/util/window.c b/src/util/window.c
index 45bafca..f3cce2a 100644
--- a/src/util/window.c
+++ b/src/util/window.c
@@ -536,6 +536,10 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
     // 2nd pass
     smooth_thumbnail(result);
 
+    if (ximg) {
+        XDestroyImage(ximg);
+        ximg = NULL;
+    }
 err4:
     if (use_shm)
         XShmDetach(server.display, &shminfo);
@@ -546,7 +550,8 @@ err2:
     if (use_shm)
         shmctl(shminfo.shmid, IPC_RMID, NULL);
 err1:
-    XDestroyImage(ximg);
+    if (ximg)
+        XDestroyImage(ximg);
 err0:
     return result;
 }