diff --git a/[refs] b/[refs]
index 9c2d3076d01a..b3d26155b42f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 94f768fd7458e5e8372b8b7565b594284afb6b89
+refs/heads/master: 75104fa4f98cdac5e97be5cb59463d49eb08da85
diff --git a/trunk/drivers/gpu/drm/radeon/rs600.c b/trunk/drivers/gpu/drm/radeon/rs600.c
index 5301b3df8466..31b84b6672b7 100644
--- a/trunk/drivers/gpu/drm/radeon/rs600.c
+++ b/trunk/drivers/gpu/drm/radeon/rs600.c
@@ -46,19 +46,27 @@
 void rs600_gpu_init(struct radeon_device *rdev);
 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
 
+static const u32 crtc_offsets[2] =
+{
+	0,
+	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
+};
+
 void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
 {
-	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
 	int i;
 
-	if (RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset) & AVIVO_CRTC_EN) {
+	if (crtc >= rdev->num_crtc)
+		return;
+
+	if (RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN) {
 		for (i = 0; i < rdev->usec_timeout; i++) {
-			if (!(RREG32(AVIVO_D1CRTC_STATUS + radeon_crtc->crtc_offset) & AVIVO_D1CRTC_V_BLANK))
+			if (!(RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK))
 				break;
 			udelay(1);
 		}
 		for (i = 0; i < rdev->usec_timeout; i++) {
-			if (RREG32(AVIVO_D1CRTC_STATUS + radeon_crtc->crtc_offset) & AVIVO_D1CRTC_V_BLANK)
+			if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
 				break;
 			udelay(1);
 		}