[Nouveau] [PATCH] drm/nv50: initialize ramht_refs list for faked 0 channel

[Marcin Slusarz]

We need it for PFIFO_INTR_CACHE_ERROR interrupt handling,
because nouveau_fifo_swmthd looks for matching gpuobj in
ramht_refs list.
It fixes kernel panic in nouveau_gpuobj_ref_find.

Signed-off-by: Marcin Slusarz <marcin.slusarz at gmail.com>
---
 drivers/gpu/drm/nouveau/nv50_instmem.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index b57cc4a..6e57426 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -139,6 +139,8 @@ nv50_instmem_init(struct drm_device *dev)
 	chan->file_priv = (struct drm_file *)-2;
 	dev_priv->fifos[0] = dev_priv->fifos[127] = chan;
 
+	INIT_LIST_HEAD(&chan->ramht_refs);
+
 	/* Channel's PRAMIN object + heap */
 	ret = nouveau_gpuobj_new_fake(dev, 0, c_offset, c_size, 0,
 							NULL, &chan->ramin);
-- 
1.7.1.1