[patch] drm/imx: drm_dev_alloc() returns error pointers

[Lucas Stach]

Am Donnerstag, den 13.10.2016, 11:53 +0300 schrieb Dan Carpenter:
> We are checking for NULL here, when we should be checking for error
> pointers.
> 
> Fixes: 54db5decce17 ("drm/imx: drop deprecated load/unload drm_driver
> ops")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

Reviewed-by: Lucas Stach <l.stach at pengutronix.de>

> 
> diff --git a/drivers/gpu/drm/imx/imx-drm-core.c
> b/drivers/gpu/drm/imx/imx-drm-core.c
> index 98df09c..3acc976 100644
> --- a/drivers/gpu/drm/imx/imx-drm-core.c
> +++ b/drivers/gpu/drm/imx/imx-drm-core.c
> @@ -357,8 +357,8 @@ static int imx_drm_bind(struct device *dev)
>  	int ret;
>  
>  	drm = drm_dev_alloc(&imx_drm_driver, dev);
> -	if (!drm)
> -		return -ENOMEM;
> +	if (IS_ERR(drm))
> +		return PTR_ERR(drm);
>  
>  	imxdrm = devm_kzalloc(dev, sizeof(*imxdrm), GFP_KERNEL);
>  	if (!imxdrm) {