linux-kernel - Re: [PATCH 0/3] soc: qcom: pmic

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Message-ID: <ZsNpSt3BtdFIT6ml@hovoldconsulting.com>
Date: Mon, 19 Aug 2024 17:48:26 +0200
From: Johan Hovold <johan@...nel.org>
To: Bjorn Andersson <quic_bjorande@...cinc.com>
Cc: Sebastian Reichel <sre@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Johan Hovold <johan+linaro@...nel.org>,
	Chris Lew <quic_clew@...cinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Stephen Boyd <swboyd@...omium.org>,
	Amit Pundir <amit.pundir@...aro.org>, linux-arm-msm@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 0/3] soc: qcom: pmic_glink: v6.11-rc bug fixes

On Sun, Aug 18, 2024 at 04:17:36PM -0700, Bjorn Andersson wrote:
> Amit and Johan both reported a NULL pointer dereference in the
> pmic_glink client code during initialization, and Stephen Boyd pointed
> out the problem (race condition).

> In addition to the NULL pointer dereference, there is the -ECANCELED
> issue reported here:
> https://lore.kernel.org/all/Zqet8iInnDhnxkT9@hovoldconsulting.com/
> I have not yet been able to either reproduce this or convince myself
> that this is the same issue.

I can confirm that I still see the -ECANCELED issue with this series
applied:

[    8.979329] pmic_glink_altmode.pmic_glink_altmode pmic_glink.altmode.0: failed to send altmode request: 0x10 (-125)
[    9.004735] pmic_glink_altmode.pmic_glink_altmode pmic_glink.altmode.0: failed to request altmode notifications: -125

Johan