linux-kernel - Re: [PATCH v2] can: c_can: add xceiver enable/disable support

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Message-ID: <87k2n4fcl5.fsf@nemi.mork.no>
Date:	Wed, 20 Jan 2016 17:19:18 +0100
From:	Bjørn Mork <bjorn@...k.no>
To:	Michael Grzeschik <m.grzeschik@...gutronix.de>
Cc:	mkl@...gutronix.de, wg@...ndegger.com, linux-can@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel@...gutronix.de
Subject: Re: [PATCH v2] can: c_can: add xceiver enable/disable support

Michael Grzeschik <m.grzeschik@...gutronix.de> writes:

> @@ -1263,6 +1271,10 @@ int register_c_can_dev(struct net_device *dev)
>  	 */
>  	pinctrl_pm_select_sleep_state(dev->dev.parent);
>  
> +	priv->reg_xceiver = devm_regulator_get(priv->device, "xceiver");
> +	if (IS_ERR(priv->reg_xceiver))
> +		return PTR_ERR(priv->reg_xceiver);
> +
>  	c_can_pm_runtime_enable(priv);
>  
>  	dev->flags |= IFF_ECHO;	/* we support local echo */

Do you really want to leave priv->reg_xceiver pointing to an ERR_PTR in
case of error?



Bjørn