From: Ben Skeggs <skeggsb@gmail.com>
Date: Sun, 2 Mar 2008 05:35:47 +0000 (+1100)
Subject: nouveau: fix potential crash
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=578b5cd9a030189bcba5c3e86080e1e26eb6e108;p=mesa.git

nouveau: fix potential crash
---

diff --git a/src/gallium/winsys/dri/nouveau/nouveau_context.c b/src/gallium/winsys/dri/nouveau/nouveau_context.c
index dc852c9f498..2e54729aa97 100644
--- a/src/gallium/winsys/dri/nouveau/nouveau_context.c
+++ b/src/gallium/winsys/dri/nouveau/nouveau_context.c
@@ -256,8 +256,10 @@ nouveau_context_destroy(__DRIcontextPrivate *driContextPriv)
 
 	if (nv->pctx_id >= 0) {
 		nvc->pctx[nv->pctx_id] = NULL;
-		if (--nvc->refcount <= 0)
+		if (--nvc->refcount <= 0) {
 			nouveau_channel_context_destroy(nvc);
+			nv->nv_screen->nvc = NULL;
+		}
 	}
 
 	free(nv);