1 files changed, 4 insertions, 0 deletions
diff --git a/src/qxl_driver.c b/src/qxl_driver.c
index 1a253d2..d8abb7b 100644
--- a/src/qxl_driver.c
+++ b/src/qxl_driver.c
@@ -1040,6 +1040,10 @@ check_crtc (qxl_screen_t *qxl)
     int i, count = 0;
     xf86CrtcPtr crtc;
     
+    if (qxl->crtcs == NULL) {
+        return 0;
+    }
+
     for (i = 0 ; i < qxl->num_heads; ++i)
     {
 	crtc = qxl->crtcs[i];