linux-kernel - Re: [PATCH v6 2/4] gpio: ch341: add GPIO MFD cell driver for the CH341

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Message-ID: <CAHp75VfWbC2fbKenuzx6LXjUTApcUKyX6gXd-3Pe31cvrbT7kQ@mail.gmail.com>
Date:   Mon, 20 Jun 2022 18:08:19 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     frank zago <frank@...o.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Wolfram Sang <wsa@...nel.org>, USB <linux-usb@...r.kernel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH v6 2/4] gpio: ch341: add GPIO MFD cell driver for the CH341

On Mon, Jun 20, 2022 at 12:26 PM Johan Hovold <johan@...nel.org> wrote:
> On Wed, Jun 15, 2022 at 08:37:45PM -0500, frank zago wrote:

...

> > +     /* Create an URB for handling interrupt */
> > +     dev->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
> > +     if (!dev->irq_urb)
> > +             return dev_err_probe(&pdev->dev, -ENOMEM, "Cannot allocate the int URB\n");
>
> This isn't how dev_err_probe() is used.

While I agree on the below comment, what does this imply?

> And allocation failures are already logged so just return -ENOMEM here.

-- 
With Best Regards,
Andy Shevchenko