linux-kernel - Re: [PATCH] drm/msm/hdmi: Add missing check for alloc_ordered

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Message-ID: <698a7082-84a5-b805-3e7b-9c72810580f3@linaro.org>
Date:   Mon, 9 Jan 2023 00:40:53 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Jiasheng Jiang <jiasheng@...as.ac.cn>, robdclark@...il.com,
        quic_abhinavk@...cinc.com, sean@...rly.run, airlied@...il.com,
        daniel@...ll.ch, swboyd@...omium.org, quic_khsieh@...cinc.com,
        johan+linaro@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm/hdmi: Add missing check for
 alloc_ordered_workqueue

On 06/01/2023 04:30, Jiasheng Jiang wrote:
> Add check for the return value of alloc_ordered_workqueue as it may return
> NULL pointer and cause NULL pointer dereference in `hdmi_hdcp.c` and
> `hdmi_hpd.c`.
> 
> Fixes: c6a57a50ad56 ("drm/msm/hdmi: add hdmi hdcp support (V3)")
> Signed-off-by: Jiasheng Jiang <jiasheng@...as.ac.cn>
> ---
>   drivers/gpu/drm/msm/hdmi/hdmi.c | 4 ++++
>   1 file changed, 4 insertions(+)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry