linux-kernel - Re: [PATCH 2/2] drm/msm/dp: fix runtime PM leak on connect failure

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Message-ID: <2020929f-c9a5-1209-78cb-ca75db44a432@quicinc.com>
Date: Wed, 13 Mar 2024 11:16:48 -0700
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: Johan Hovold <johan+linaro@...nel.org>, Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: Sean Paul <sean@...rly.run>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Daniel
 Vetter" <daniel@...ll.ch>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        "Bjorn
 Andersson" <quic_bjorande@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <stable@...r.kernel.org>
Subject: Re: [PATCH 2/2] drm/msm/dp: fix runtime PM leak on connect failure



On 3/13/2024 9:43 AM, Johan Hovold wrote:
> Make sure to balance the runtime PM usage counter (and suspend) before
> returning on connect failures (e.g. DPCD read failures after a spurious
> connect event or if link training fails).
> 
> Fixes: 5814b8bf086a ("drm/msm/dp: incorporate pm_runtime framework into DP driver")
> Cc: stable@...r.kernel.org      # 6.8
> Cc: Kuogee Hsieh <quic_khsieh@...cinc.com>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>

Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>