Re: [PATCH 2/2] drm/imagination: Fix IS_ERR() vs NULL bug in pvr_request_firmware()

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On Thu, 2023-11-30 at 10:27 +0300, Dan Carpenter wrote:
> The pvr_build_firmware_filename() function returns NULL on error.  It
> doesn't return error pointers.
> 
> Fixes: f99f5f3ea7ef ("drm/imagination: Add GPU ID parsing and firmware loading")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Reviewed-by: Frank Binns <frank.binns@xxxxxxxxxx>

> ---
>  drivers/gpu/drm/imagination/pvr_device.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/imagination/pvr_device.c b/drivers/gpu/drm/imagination/pvr_device.c
> index e1dcc4e42087..5389aea7ff21 100644
> --- a/drivers/gpu/drm/imagination/pvr_device.c
> +++ b/drivers/gpu/drm/imagination/pvr_device.c
> @@ -286,8 +286,8 @@ pvr_request_firmware(struct pvr_device *pvr_dev)
>  
>  	filename = pvr_build_firmware_filename(pvr_dev, "powervr/rogue",
>  					       PVR_FW_VERSION_MAJOR);
> -	if (IS_ERR(filename))
> -		return PTR_ERR(filename);
> +	if (!filename)
> +		return -ENOMEM;
>  
>  	/*
>  	 * This function takes a copy of &filename, meaning we can free our




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