linux-kernel - Re: [PATCH v5 5/5] Add ioctls to enable and disable local controls on an instrument

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Date:	Wed, 25 Nov 2015 22:46:28 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Dave Penkler <dpenkler@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	peter.chen@...escale.com, teuniz@...il.com,
	USB <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 5/5] Add ioctls to enable and disable local controls on
 an instrument

On Wed, Nov 25, 2015 at 11:12 AM, Dave Penkler <dpenkler@...il.com> wrote:
> On Sun, Nov 22, 2015 at 12:36:53PM +0200, Andy Shevchenko wrote:


> OK so now I have the same as in v4 again:
>
>         if (rv < 0) {
>                 dev_err(dev, "simple usb_control_msg failed %d\n", rv);
>                 goto exit;
>         } else if (rv != 1) {
>                 dev_warn(dev, "simple usb_control_msg returned %d\n", rv);
>                 rv = -EIO;
>                 goto exit;
>         }

This looks correct. Sorry if I misled you, but I really asked about
error code in the first place.

-- 
With Best Regards,
Andy Shevchenko
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