drm/nouveau: fix oops on runtime suspend/resume
if we have no crtcs we need to not call the display resume code. Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -636,7 +636,8 @@ int nouveau_pmops_resume(struct device *dev)
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nouveau_fbcon_set_suspend(drm_dev, 0);
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nouveau_fbcon_zfill_all(drm_dev);
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nouveau_display_resume(drm_dev);
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if (drm_dev->mode_config.num_crtc)
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nouveau_display_resume(drm_dev);
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nv_suspend_set_printk_level(NV_DBG_DEBUG);
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return 0;
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}
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@ -671,7 +672,8 @@ static int nouveau_pmops_thaw(struct device *dev)
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if (drm_dev->mode_config.num_crtc)
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nouveau_fbcon_set_suspend(drm_dev, 0);
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nouveau_fbcon_zfill_all(drm_dev);
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nouveau_display_resume(drm_dev);
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if (drm_dev->mode_config.num_crtc)
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nouveau_display_resume(drm_dev);
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nv_suspend_set_printk_level(NV_DBG_DEBUG);
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return 0;
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}
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@ -906,7 +908,8 @@ static int nouveau_pmops_runtime_resume(struct device *dev)
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pci_set_master(pdev);
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ret = nouveau_do_resume(drm_dev);
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nouveau_display_resume(drm_dev);
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if (drm_dev->mode_config.num_crtc)
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nouveau_display_resume(drm_dev);
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drm_kms_helper_poll_enable(drm_dev);
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/* do magic */
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nv_mask(device, 0x88488, (1 << 25), (1 << 25));
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