Re: [PATCH 14/51] drm/vkms: Use drmm_add_final_kfree

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Hi,

Thanks for the patch.

I reviewed and tested this patch, and everything looks fine.

Reviewed-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
Tested-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>

On 02/27, Daniel Vetter wrote:
> With this we can drop the final kfree from the release function.
> 
> v2: After drm_dev_init/drmm_add_final_kfree we need to clean up
> everything through a drm_dev_put. Rework the unwind code to match
> that.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
> Cc: Haneen Mohammed <hamohammed.sa@xxxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> ---
>  drivers/gpu/drm/vkms/vkms_drv.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
> index 860de052e820..2f35fe789343 100644
> --- a/drivers/gpu/drm/vkms/vkms_drv.c
> +++ b/drivers/gpu/drm/vkms/vkms_drv.c
> @@ -21,6 +21,7 @@
>  #include <drm/drm_file.h>
>  #include <drm/drm_gem_framebuffer_helper.h>
>  #include <drm/drm_ioctl.h>
> +#include <drm/drm_managed.h>
>  #include <drm/drm_probe_helper.h>
>  #include <drm/drm_vblank.h>
>  
> @@ -158,13 +159,14 @@ static int __init vkms_init(void)
>  			   &vkms_device->platform->dev);
>  	if (ret)
>  		goto out_unregister;
> +	drmm_add_final_kfree(&vkms_device->drm, vkms_device);
>  
>  	ret = dma_coerce_mask_and_coherent(vkms_device->drm.dev,
>  					   DMA_BIT_MASK(64));
>  
>  	if (ret) {
>  		DRM_ERROR("Could not initialize DMA support\n");
> -		goto out_fini;
> +		goto out_put;
>  	}
>  
>  	vkms_device->drm.irq_enabled = true;
> @@ -172,25 +174,25 @@ static int __init vkms_init(void)
>  	ret = drm_vblank_init(&vkms_device->drm, 1);
>  	if (ret) {
>  		DRM_ERROR("Failed to vblank\n");
> -		goto out_fini;
> +		goto out_put;
>  	}
>  
>  	ret = vkms_modeset_init(vkms_device);
>  	if (ret)
> -		goto out_fini;
> +		goto out_put;
>  
>  	ret = drm_dev_register(&vkms_device->drm, 0);
>  	if (ret)
> -		goto out_fini;
> +		goto out_put;
>  
>  	return 0;
>  
> -out_fini:
> -	drm_dev_fini(&vkms_device->drm);
> +out_put:
> +	drm_dev_put(&vkms_device->drm);
> +	return ret;
>  
>  out_unregister:
>  	platform_device_unregister(vkms_device->platform);
> -
>  out_free:
>  	kfree(vkms_device);
>  	return ret;
> @@ -205,8 +207,6 @@ static void __exit vkms_exit(void)
>  
>  	drm_dev_unregister(&vkms_device->drm);
>  	drm_dev_put(&vkms_device->drm);
> -
> -	kfree(vkms_device);
>  }
>  
>  module_init(vkms_init);
> -- 
> 2.24.1
> 

-- 
Rodrigo Siqueira
https://siqueira.tech

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