linux-kernel - Re: [PATCH] soundwire: intel

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Message-ID: <YGV0a+ZnTh7A8DD0@vkoul-mobl.Dlink>
Date:   Thu, 1 Apr 2021 12:51:15 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bard Liao <yung-chuan.liao@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, srinivas.kandagatla@...aro.org,
        rander.wang@...ux.intel.com, hui.wang@...onical.com,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        bard.liao@...el.com
Subject: Re: [PATCH] soundwire: intel_init: test link->cdns

On 31-03-21, 09:02, Bard Liao wrote:
> intel_link_probe() could return error and dev_get_drvdata() will return
> null in such case. So we have to test link->cdns after
> link->cdns = dev_get_drvdata(&ldev->auxdev.dev);
> Otherwise, we will meet the "kernel NULL pointer dereference" error.

This fails to apply for me

-- 
~Vinod