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From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
To: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Cc: Srinivas Kandagatla <srini@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Vinod Koul <vkoul@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org,
	linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 5/7] slimbus: qcom-ngd-ctrl: Initialize controller resources in controller
Date: Wed, 11 Mar 2026 03:34:03 +0200	[thread overview]
Message-ID: <cnbyqrpmfgofeoybc6kehztsrtyfc5xhwdjhu6qanq4l5434jz@xllc7ichy3y2> (raw)
In-Reply-To: <20260309-slim-ngd-dev-v1-5-5843e3ed62a3@oss.qualcomm.com>

On Mon, Mar 09, 2026 at 11:09:06PM -0500, Bjorn Andersson wrote:
> The work structs and work queue are controller resources, create and
> destroy them in the controller context. Creating them as part of the
> child device's probe path seems to be okay now that the controller's
> probe has been updated, but if for some reason the child does not probe
> successfully a SSR or PDR notification will schedule_work() on an
> uninitialized "ngd_up_work".
> 
> Move the initialization of these controller resources to the controller
> probe function to avoid any issues, and to clarify the ownership.
> 
> Fixes: 917809e2280b ("slimbus: ngd: Add qcom SLIMBus NGD driver")
> Cc: stable@vger.kernel.org
> Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
> ---
>  drivers/slimbus/qcom-ngd-ctrl.c | 38 ++++++++++++++++----------------------
>  1 file changed, 16 insertions(+), 22 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

  parent reply	other threads:[~2026-03-11  1:34 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-10  4:09 [PATCH 0/7] slimbus: qcom-ngd-ctrl: Fix some race conditions and deadlocks Bjorn Andersson
2026-03-10  4:09 ` [PATCH 1/7] slimbus: qcom-ngd-ctrl: Fix up platform_driver registration Bjorn Andersson
2026-03-10  7:33   ` Mukesh Ojha
2026-03-11  1:30   ` Dmitry Baryshkov
2026-03-10  4:09 ` [PATCH 2/7] slimbus: qcom-ngd-ctrl: Fix probe error path ordering Bjorn Andersson
2026-03-10  7:36   ` Mukesh Ojha
2026-03-11  1:30   ` Dmitry Baryshkov
2026-03-10  4:09 ` [PATCH 3/7] slimbus: qcom-ngd-ctrl: Correct PDR and SSR cleanup ownership Bjorn Andersson
2026-03-10  7:39   ` Mukesh Ojha
2026-03-24  2:36     ` Bjorn Andersson
2026-03-24  6:32       ` Mukesh Ojha
2026-03-11  1:32   ` Dmitry Baryshkov
2026-03-10  4:09 ` [PATCH 4/7] slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd Bjorn Andersson
2026-03-10  7:49   ` Mukesh Ojha
2026-03-11  1:45   ` Dmitry Baryshkov
2026-03-10  4:09 ` [PATCH 5/7] slimbus: qcom-ngd-ctrl: Initialize controller resources in controller Bjorn Andersson
2026-03-10  7:54   ` Mukesh Ojha
2026-03-11  1:34   ` Dmitry Baryshkov [this message]
2026-03-10  4:09 ` [PATCH 6/7] slimbus: qcom-ngd-ctrl: Balance pm_runtime enablement for NGD Bjorn Andersson
2026-03-10  8:00   ` Mukesh Ojha
2026-03-11  1:34   ` Dmitry Baryshkov
2026-03-10  4:09 ` [PATCH 7/7] slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock Bjorn Andersson
2026-03-10 10:03   ` Mukesh Ojha
2026-03-11  0:06     ` Bjorn Andersson
2026-03-11  1:37   ` Dmitry Baryshkov
2026-03-11  1:40 ` [PATCH 0/7] slimbus: qcom-ngd-ctrl: Fix some race conditions and deadlocks Dmitry Baryshkov

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