Re: [patch] drm/hisilicon/hibmc: Checking for NULL instead of IS_ERR()

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On Thu, Nov 24, 2016 at 02:35:45PM +0300, Dan Carpenter wrote:
> The drm_dev_alloc() function returns error pointers.  It never returns
> NULLs.
> 
> Fixes: 5e0df3a08f3d ("drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Applied to drm-misc, thanks.
-Daniel

> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 73ba8b0..d94e349 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -377,9 +377,9 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
>  	int ret;
>  
>  	dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
> -	if (!dev) {
> +	if (IS_ERR(dev)) {
>  		DRM_ERROR("failed to allocate drm_device\n");
> -		return -ENOMEM;
> +		return PTR_ERR(dev);
>  	}
>  
>  	dev->pdev = pdev;
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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