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drm/nouveau/sw: fix oops if gpu has its display block disabled

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs 11 years ago
parent
2fd04c81dc
commit
13cd1a5511
1 changed files with 1 additions and 1 deletions
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  1. 1 1
      drivers/gpu/drm/nouveau/core/engine/software/nv50.c

+ 1 - 1
drivers/gpu/drm/nouveau/core/engine/software/nv50.c
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@@ -176,7 +176,7 @@ nv50_software_context_ctor(struct nouveau_object *parent,
 
 	if (ret)
 
 		return ret;
 
 
-	chan->vblank.nr_event = pdisp->vblank->index_nr;
 
+	chan->vblank.nr_event = pdisp ? pdisp->vblank->index_nr : 0;
 
 	chan->vblank.event = kzalloc(chan->vblank.nr_event *
 
 				     sizeof(*chan->vblank.event), GFP_KERNEL);
 
 	if (!chan->vblank.event)