linux-kernel - Re: [PATCH next] drm/msm/dpu: fix error pointer dereference in msm_kms_init

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Message-ID: <dd8e3f51-e8e5-4a4d-9932-c2005988c366@quicinc.com>
Date: Tue, 25 Feb 2025 15:03:16 -0800
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: Dan Carpenter <dan.carpenter@...aro.org>
CC: Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Simona
 Vetter" <simona@...ll.ch>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH next] drm/msm/dpu: fix error pointer dereference in
 msm_kms_init_aspace()



On 2/24/2025 11:30 PM, Dan Carpenter wrote:
> If msm_gem_address_space_create() fails, then return right away.
> Otherwise it leads to a Oops when we dereference "aspace" on the next
> line.
> 
> Fixes: 2d215d440faa ("drm/msm: register a fault handler for display mmu faults")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
> ---
>   drivers/gpu/drm/msm/msm_kms.c | 1 +
>   1 file changed, 1 insertion(+)
> 

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