diff -u a/mi/midispcur.c b/mi/midispcur.c
--- a/mi/midispcur.c    2011-08-05 09:59:03.000000000 +0400
+++ b/mi/midispcur.c    2012-02-16 10:07:52.524576132 +0400
@@ -479,6 +479,10 @@
     GCPtr          pGC;

     pBuffer = miGetDCDevice(pDev, pScreen);
+
+    if (!pBuffer)
+       return FALSE;
+
     pSave = pBuffer->pSave;

     pWin = pScreen->root;