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From: "CK Hu (胡俊光)" <ck.hu@mediatek.com>
To: "Jason-JH Lin (林睿祥)" <Jason-JH.Lin@mediatek.com>,
	"chunkuang.hu@kernel.org" <chunkuang.hu@kernel.org>,
	"angelogioacchino.delregno@collabora.com"
	<angelogioacchino.delregno@collabora.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Singo Chang (張興國)" <Singo.Chang@mediatek.com>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	"Jason-ch Chen (陳建豪)" <Jason-ch.Chen@mediatek.com>,
	"Shawn Sung (宋孝謙)" <Shawn.Sung@mediatek.com>,
	"Nancy Lin (林欣螢)" <Nancy.Lin@mediatek.com>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@mediatek.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"matthias.bgg@gmail.com" <matthias.bgg@gmail.com>,
	"Rex-BC Chen (陳柏辰)" <Rex-BC.Chen@mediatek.com>
Subject: Re: [PATCH 1/5] drm/mediatek: Remove freeing not dynamic allocated memory
Date: Mon, 12 Jun 2023 08:06:47 +0000	[thread overview]
Message-ID: <2ff94f781b17c25229d547e763f74ef43aac35f6.camel@mediatek.com> (raw)
In-Reply-To: <20230407064657.12350-2-jason-jh.lin@mediatek.com>

Hi, Jason:

On Fri, 2023-04-07 at 14:46 +0800, Jason-JH.Lin wrote:
> Fixing the coverity issue of:
> mtk_drm_cmdq_pkt_destroy frees address of mtk_crtc->cmdq_handle
> 
> So remove the free function.
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> Fixes: 7627122fd1c0 ("drm/mediatek: Add cmdq_handle in mtk_crtc")
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index 4bc45cdbddf1..c7b03e564095 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -148,7 +148,6 @@ static void mtk_drm_cmdq_pkt_destroy(struct
> cmdq_pkt *pkt)
>  	dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt-
> >buf_size,
>  			 DMA_TO_DEVICE);
>  	kfree(pkt->va_base);
> -	kfree(pkt);


Also fix the same problem in mtk_drm_cmdq_pkt_create().

Regards,
CK

>  }
>  #endif
>  

       reply	other threads:[~2023-06-12  8:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20230407064657.12350-1-jason-jh.lin@mediatek.com>
     [not found] ` <20230407064657.12350-2-jason-jh.lin@mediatek.com>
2023-06-12  8:06   ` CK Hu (胡俊光) [this message]
2023-06-13  7:06     ` Jason-JH Lin (林睿祥)
     [not found] ` <20230407064657.12350-3-jason-jh.lin@mediatek.com>
2023-06-12  8:21   ` [PATCH 2/5] drm/mediatek: Add cnt checking for coverity issue CK Hu (胡俊光)
2023-06-13  7:07     ` Jason-JH Lin (林睿祥)
     [not found] ` <20230407064657.12350-4-jason-jh.lin@mediatek.com>
2023-06-12  8:27   ` [PATCH 3/5] drm/mediatek: Add initialization for mtk_gem_obj CK Hu (胡俊光)
2023-06-13  7:20     ` Jason-JH Lin (林睿祥)
     [not found] ` <20230407064657.12350-5-jason-jh.lin@mediatek.com>
2023-06-12  9:05   ` [PATCH 4/5] drm/mediatek: Add casting before assign CK Hu (胡俊光)
2023-06-13  8:26     ` Jason-JH Lin (林睿祥)
     [not found] ` <20230407064657.12350-6-jason-jh.lin@mediatek.com>
2023-06-12  9:10   ` [PATCH 5/5] drm/mediatek: Fix dereference before null check CK Hu (胡俊光)
2023-06-13  9:05     ` Jason-JH Lin (林睿祥)

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