[patch] drm: ARM HDLCD - fix an error code

[Liviu Dudau]

On Sat, Apr 02, 2016 at 08:42:24AM +0300, Dan Carpenter wrote:
> We accidentally return PTR_ERR(NULL) which is success instead of a
> negative error code.
> 
> Fixes: 879e40bea6f2 ('drm: ARM HDLCD - get rid of devm_clk_put()')
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
> 
> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
> index 734849f..3ac1ae4 100644
> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
> @@ -55,8 +55,9 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
>  	hdlcd->mmio = devm_ioremap_resource(drm->dev, res);
>  	if (IS_ERR(hdlcd->mmio)) {
>  		DRM_ERROR("failed to map control registers area\n");
> +		ret = PTR_ERR(hdlcd->mmio);
>  		hdlcd->mmio = NULL;
> -		return PTR_ERR(hdlcd->mmio);
> +		return ret;

Good catch, thanks for that!

Acked-by: Liviu Dudau <Liviu.Dudau at arm.com>

I've pulled your patch and sent an updated pull request.

Best regards,
Liviu


>  	}
>  
>  	version = hdlcd_read(hdlcd, HDLCD_REG_VERSION);
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