1 files changed, 4 insertions, 0 deletions
diff --git a/hw/xfree86/ramdac/xf86HWCurs.c b/hw/xfree86/ramdac/xf86HWCurs.c
index da2b18101..448132095 100644
--- a/hw/xfree86/ramdac/xf86HWCurs.c
+++ b/hw/xfree86/ramdac/xf86HWCurs.c
@@ -148,6 +148,10 @@ xf86CheckHWCursor(ScreenPtr pScreen, CursorPtr cursor, xf86CursorInfoPtr infoPtr
             continue;
 
         sPriv = dixLookupPrivate(&pSlave->devPrivates, xf86CursorScreenKey);
+        if (!sPriv) /* NULL if Option "SWCursor", possibly other conditions */
+            return FALSE;
+
+        /* FALSE if HWCursor not supported by slave */
         if (!xf86ScreenCheckHWCursor(pSlave, cursor, sPriv->CursorInfoPtr))
             return FALSE;
     }