From c57944cd9aaac717d4d4ada44626e35925b39bbd Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Sat, 24 Jul 2004 17:02:49 +0000
Subject: [PATCH] Check for mmio before restoring crtc/crtc2 pitch registers

---
 hw/kdrive/ati/ati.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/hw/kdrive/ati/ati.c b/hw/kdrive/ati/ati.c
index d421d0c33..470f66042 100644
--- a/hw/kdrive/ati/ati.c
+++ b/hw/kdrive/ati/ati.c
@@ -612,8 +612,11 @@ ATIRestore(KdCardInfo *card)
 	ATICardInfo *atic = card->driver;
 	char *mmio = atic->reg_base;
 
-	MMIO_OUT32(mmio, ATI_REG_CRTC_PITCH, atic->crtc_pitch);
-	MMIO_OUT32(mmio, ATI_REG_CRTC2_PITCH, atic->crtc2_pitch);
+	if (mmio)
+	{
+		MMIO_OUT32(mmio, ATI_REG_CRTC_PITCH, atic->crtc_pitch);
+		MMIO_OUT32(mmio, ATI_REG_CRTC2_PITCH, atic->crtc2_pitch);
+	}
 	ATIUnmapReg(card, atic);
 
 	atic->backend_funcs.restore(card);