linux-kernel - [PATCH v3,0/2] media: adding lock to protect the context list

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Message-ID: <20240222092609.31382-1-yunfei.dong@mediatek.com>
Date: Thu, 22 Feb 2024 17:26:07 +0800
From: Yunfei Dong <yunfei.dong@...iatek.com>
To: Nícolas F . R . A . Prado
	<nfraprado@...labora.com>, Nicolas Dufresne <nicolas.dufresne@...labora.com>,
	Hans Verkuil <hverkuil-cisco@...all.nl>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Benjamin Gaignard
	<benjamin.gaignard@...labora.com>, Nathan Hebert <nhebert@...omium.org>, Irui
 Wang <irui.wang@...iatek.com>
CC: Hsin-Yi Wang <hsinyi@...omium.org>, Fritz Koenig <frkoenig@...omium.org>,
	Daniel Vetter <daniel@...ll.ch>, Steve Cho <stevecho@...omium.org>, Yunfei
 Dong <yunfei.dong@...iatek.com>, <linux-media@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v3,0/2] media: adding lock to protect the context list

From: Yunfei Dong <yunfei.dong@...iatek.corp-partner.google.com>

The ctx_list of each module will be deleted when scp getting unexpected
behavior, then the ctx_list->next will be set to NULL, the system reboot
when access the NULL pointer in function vpu_enc(dev)_ipi_handler to go
through each context.

---
Changed in v3:
- change 'Fixes' tag in patch 1/2
- add cover-letter for this patch series
---
Yunfei Dong (2):
  media: mediatek: vcodec: adding lock to protect decoder context list
  media: mediatek: vcodec: adding lock to protect encoder context list

 .../platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c   | 8 ++++----
 .../platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c | 5 +++++
 .../platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h | 2 ++
 .../media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c  | 2 ++
 .../platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c | 5 +++++
 .../platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h | 2 ++
 .../media/platform/mediatek/vcodec/encoder/venc_vpu_if.c  | 2 ++
 7 files changed, 22 insertions(+), 4 deletions(-)

-- 
2.18.0