From 634b4b3487dcb22e1660959b6a7ce9a42fa50fe2 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <darktama@iinet.net.au>
Date: Mon, 15 Jan 2007 17:23:04 +1100
Subject: nouveau: fail CreateScreen on unknown cards instead of guessing.

---
 src/mesa/drivers/dri/nouveau/nouveau_card.c   | 4 ++--
 src/mesa/drivers/dri/nouveau/nouveau_screen.c | 9 ++++++++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_card.c b/src/mesa/drivers/dri/nouveau/nouveau_card.c
index ae4f4c7ae5..91f12f0d70 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_card.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_card.c
@@ -10,8 +10,8 @@ nouveau_card* nouveau_card_lookup(uint32_t device_id)
 	int i;
 	for(i=0;i<sizeof(nouveau_card_list)/sizeof(nouveau_card)-1;i++)
 		if (nouveau_card_list[i].id==(device_id&0xffff))
-			break;
-	return &(nouveau_card_list[i]);
+			return &(nouveau_card_list[i]);
+	return NULL;
 }
 
 
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_screen.c b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
index 0e3901cfca..ab7742df14 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_screen.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
@@ -71,6 +71,14 @@ static nouveauScreenPtr nouveauCreateScreen(__DRIscreenPrivate *sPriv)
 		return NULL;
 	}
 	
+	screen->card=nouveau_card_lookup(dri_priv->device_id);
+	if (!screen->card) {
+		__driUtilMessage("%s: Unknown card type 0x%04x:0x%04x\n",
+			__func__, dri_priv->device_id >> 16, dri_priv->device_id & 0xFFFF);
+		FREE(screen);
+		return NULL;
+	}
+
 	/* parse information in __driConfigOptions */
 	driParseOptionInfo (&screen->optionCache,__driConfigOptions, __driNConfigOptions);
 
@@ -82,7 +90,6 @@ static nouveauScreenPtr nouveauCreateScreen(__DRIscreenPrivate *sPriv)
 	screen->depthOffset = dri_priv->depth_offset;
 	screen->depthPitch  = dri_priv->depth_pitch;
 
-	screen->card=nouveau_card_lookup(dri_priv->device_id);
 	screen->driScreen = sPriv;
 	return screen;
 }
-- 
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