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drm/nv50: fix two potential suspend/resume oopses

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This avoids touching the dummy channel 0/127 we have on nv50.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2009-12-16 14:51:13 +10:00
parent 054b93e444
commit 3c8868d3db
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/nouveau/nouveau_drv.c
View File

@ -277,7 +277,7 @@ nouveau_pci_resume(struct pci_dev *pdev)
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
chan = dev_priv->fifos[i];
if (!chan)
if (!chan || !chan->pushbuf_bo)
continue;
for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)

2
drivers/gpu/drm/nouveau/nv50_fifo.c
View File

@ -416,7 +416,7 @@ nv50_fifo_unload_context(struct drm_device *dev)
NV_DEBUG(dev, "\n");
chid = pfifo->channel_id(dev);
if (chid < 0 || chid >= dev_priv->engine.fifo.channels)
if (chid < 1 || chid >= dev_priv->engine.fifo.channels - 1)
return 0;
chan = dev_priv->fifos[chid];