コード例 #1
0
ファイル: cirrus_main.c プロジェクト: 0x000000FF/Linux4Edison
int cirrus_driver_load(struct drm_device *dev, unsigned long flags)
{
	struct cirrus_device *cdev;
	int r;

	cdev = kzalloc(sizeof(struct cirrus_device), GFP_KERNEL);
	if (cdev == NULL)
		return -ENOMEM;
	dev->dev_private = (void *)cdev;

	r = cirrus_device_init(cdev, dev, dev->pdev, flags);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
		goto out;
	}

	r = cirrus_mm_init(cdev);
	if (r)
		dev_err(&dev->pdev->dev, "fatal err on mm init\n");

	r = cirrus_modeset_init(cdev);
	if (r)
		dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);

	dev->mode_config.funcs = (void *)&cirrus_mode_funcs;
out:
	if (r)
		cirrus_driver_unload(dev);
	return r;
}
コード例 #2
0
ファイル: cirrus_main.c プロジェクト: AlexShiLucky/linux
int cirrus_driver_load(struct drm_device *dev, unsigned long flags)
{
	struct cirrus_device *cdev;
	int r;

	cdev = kzalloc(sizeof(struct cirrus_device), GFP_KERNEL);
	if (cdev == NULL)
		return -ENOMEM;
	dev->dev_private = (void *)cdev;

	r = cirrus_device_init(cdev, dev, dev->pdev, flags);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
		goto out;
	}

	r = cirrus_mm_init(cdev);
	if (r) {
		dev_err(&dev->pdev->dev, "fatal err on mm init\n");
		goto out;
	}

	/*
	 * cirrus_modeset_init() is initializing/registering the emulated fbdev
	 * and DRM internals can access/test some of the fields in
	 * mode_config->funcs as part of the fbdev registration process.
	 * Make sure dev->mode_config.funcs is properly set to avoid
	 * dereferencing a NULL pointer.
	 * FIXME: mode_config.funcs assignment should probably be done in
	 * cirrus_modeset_init() (that's a common pattern seen in other DRM
	 * drivers).
	 */
	dev->mode_config.funcs = &cirrus_mode_funcs;
	r = cirrus_modeset_init(cdev);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
		goto out;
	}

	return 0;
out:
	cirrus_driver_unload(dev);
	return r;
}