drm/nouveau: fix crash with noaccel=1
Reported-by: Ortwin Glück <odi@odi.ch>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index cc79c79..cbf1fc6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -241,6 +241,10 @@
if (unlikely(!abi16))
return -ENOMEM;
+
+ if (!drm->channel)
+ return nouveau_abi16_put(abi16, -ENODEV);
+
client = nv_client(abi16->client);
if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)