linux-kernel - Re: [PATCH v3 3/4] platform/x86: intel_scu_ipc: Don't override scu in intel_scu_ipc_dev_simple

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Message-ID: <20230912050111.GB1599918@black.fi.intel.com>
Date:   Tue, 12 Sep 2023 08:01:11 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        platform-driver-x86@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Prashant Malani <pmalani@...omium.org>
Subject: Re: [PATCH v3 3/4] platform/x86: intel_scu_ipc: Don't override scu
 in intel_scu_ipc_dev_simple_command()

On Mon, Sep 11, 2023 at 12:39:35PM -0700, Stephen Boyd wrote:
> Andy discovered this bug during patch review. The 'scu' argument to this
> function shouldn't be overridden by the function itself. It doesn't make
> any sense. Looking at the commit history, we see that commit
> f57fa18583f5 ("platform/x86: intel_scu_ipc: Introduce new SCU IPC API")
> removed the setting of the scu to ipcdev in other functions, but not
> this one. That was an oversight. Remove this line so that we stop
> overriding the scu instance that is used by this function.
> 
> Reported-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Closes: https://lore.kernel.org/r/ZPjdZ3xNmBEBvNiS@smile.fi.intel.com
> Cc: Prashant Malani <pmalani@...omium.org>

Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com>