linux-kernel - Re: [PATCH] firmware: cs_dsp: Fix new control name check

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Date:   Tue, 8 Aug 2023 12:51:23 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Vlad Karpovich <vkarpovi@...nsource.cirrus.com>
CC:     Simon Trimmer <simont@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        <patches@...nsource.cirrus.com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] firmware: cs_dsp: Fix new control name check

On Fri, Aug 04, 2023 at 11:52:12AM -0500, Vlad Karpovich wrote:
> Before adding a new FW control, its name is checked against
> existing controls list. But the string length in strncmp used
> to compare controls names is taken from the list, so if beginnings
> of the controls are matching,  then the new control is not created.
> For example, if CAL_R control already exists, CAL_R_SELECTED
> is not created.
> The fix is to compare string lengths as well.
> 
> Fixes: 6477960755fb ("ASoC: wm_adsp: Move check for control existence")
> Signed-off-by: Vlad Karpovich <vkarpovi@...nsource.cirrus.com>
> ---

Acked-by: Charles Keepax <ckeepax@...nsource.cirrus.com>

Thanks,
Charles