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Subject: Re: [PATCH] lan78xx: Correctly indicate invalid OTP
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     Woojung Huh <woojung.huh@microchip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>,
        netdev@vger.kernel.org, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <1523440757-127451-1-git-send-email-phil@raspberrypi.org>
 <20180411125737.GB6119@lunn.ch>
From:   Phil Elwell <phil@raspberrypi.org>
Message-ID: <6615a0eb-a0f4-d964-bab7-e2105b589f3d@raspberrypi.org>
Date:   Wed, 11 Apr 2018 14:03:36 +0100
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Hi Andrew.

On 11/04/2018 13:57, Andrew Lunn wrote:
> On Wed, Apr 11, 2018 at 10:59:17AM +0100, Phil Elwell wrote:
>> lan78xx_read_otp tries to return -EINVAL in the event of invalid OTP
>> content, but the value gets overwritten before it is returned and the
>> read goes ahead anyway. Make the read conditional as it should be
>> and preserve the error code.
> 
> Hi Phil
> 
> Do you know that the Fixes: tag should be for this? When did it break?

It's been broken since day 1, so:

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")