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

Signed-off-by: N Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/sw: fix oops if gpu has its display block disabled
Signed-off-by: N Ben Skeggs <bskeggs@redhat.com>
13cd1a55 · Ben Skeggs · 2fd04c81 · 13cd1a55
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

drivers/gpu/drm/nouveau/core/engine/software/nv50.c drivers/gpu/drm/nouveau/core/engine/software/nv50.c +1 -1

未找到文件。
--- a/drivers/gpu/drm/nouveau/core/engine/software/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/software/nv50.c
@@ -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)