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drm/i915: Fix unload after failed initialisation

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If modeset init failed we attempted to unload the module, before we
finished setting it up and so triggered various oopses.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-11-08 17:10:29 +00:00
parent 374c479bef
commit 56e2ea346a
1 changed files with 12 additions and 9 deletions
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21
drivers/gpu/drm/i915/i915_dma.c
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@ -1993,7 +1993,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
drm_core_check_feature(dev, DRIVER_MODESET)) {
DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
ret = -ENODEV;
goto out_iomapfree;
goto out_workqueue_free;
}
dev->driver->get_vblank_counter = i915_get_vblank_counter;
@ -2016,8 +2016,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
/* Init HWS */
if (!I915_NEED_GFX_HWS(dev)) {
ret = i915_init_phys_hws(dev);
if (ret != 0)
goto out_workqueue_free;
if (ret)
goto out_gem_unload;
}
if (IS_PINEVIEW(dev))
@ -2044,11 +2044,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
dev_priv->trace_irq_seqno = 0;
ret = drm_vblank_init(dev, I915_NUM_PIPE);
if (ret) {
(void) i915_driver_unload(dev);
return ret;
}
if (ret)
goto out_gem_unload;
/* Start out suspended */
dev_priv->mm.suspended = 1;
@ -2059,7 +2056,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
ret = i915_load_modeset_init(dev);
if (ret < 0) {
DRM_ERROR("failed to init modeset\n");
goto out_workqueue_free;
goto out_gem_unload;
}
}
@ -2077,6 +2074,12 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
return 0;
out_gem_unload:
if (dev->pdev->msi_enabled)
pci_disable_msi(dev->pdev);
intel_teardown_gmbus(dev);
intel_teardown_mchbar(dev);
out_workqueue_free:
destroy_workqueue(dev_priv->wq);
out_iomapfree: