linux-kernel - Re: [PATCH v9 3/3] i2c: aspeed: Assert NAK when slave is busy

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Date:   Sun, 2 Oct 2022 00:55:02 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Quan Nguyen <quan@...amperecomputing.com>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Corey Minyard <minyard@....org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        openipmi-developer@...ts.sourceforge.net,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org, openbmc@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org,
        Open Source Submission <patches@...erecomputing.com>,
        Phong Vo <phong@...amperecomputing.com>,
        thang@...amperecomputing.com
Subject: Re: [PATCH v9 3/3] i2c: aspeed: Assert NAK when slave is busy


> +		if (ret == -EBUSY)

Since we documented this:

"+  'ret': 0 if the backend is ready, otherwise some errno"

the code above should be '(ret < 0)'


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