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drm/vmwgfx: Release ttm memory if probe fails

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The ttm mem global state was leaking if the vmwgfx driver load failed.

In case of a driver load failure we have to make sure we also release
the ttm mem global state.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211105193845.258816-3-zackr@vmware.com
This commit is contained in:
Zack Rusin 2021-11-05 15:38:43 -04:00
parent 826c387d01
commit 28b5f3b612
1 changed files with 16 additions and 10 deletions
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26
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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@ -1616,34 +1616,40 @@ static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver);
if (ret)
return ret;
goto out_error;
ret = pcim_enable_device(pdev);
if (ret)
return ret;
goto out_error;
vmw = devm_drm_dev_alloc(&pdev->dev, &driver,
struct vmw_private, drm);
if (IS_ERR(vmw))
return PTR_ERR(vmw);
if (IS_ERR(vmw)) {
ret = PTR_ERR(vmw);
goto out_error;
}
pci_set_drvdata(pdev, &vmw->drm);
ret = ttm_mem_global_init(&ttm_mem_glob, &pdev->dev);
if (ret)
return ret;
goto out_error;
ret = vmw_driver_load(vmw, ent->device);
if (ret)
return ret;
goto out_release;
ret = drm_dev_register(&vmw->drm, 0);
if (ret) {
vmw_driver_unload(&vmw->drm);
return ret;
}
if (ret)
goto out_unload;
return 0;
out_unload:
vmw_driver_unload(&vmw->drm);
out_release:
ttm_mem_global_release(&ttm_mem_glob);
out_error:
return ret;
}
static int __init vmwgfx_init(void)