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From: Yunfei Dong <yunfei.dong@mediatek.com>
To: "Yunfei Dong" <yunfei.dong@mediatek.com>,
	"Chen-Yu Tsai" <wenst@chromium.org>,
	"Nicolas Dufresne" <nicolas@ndufresne.ca>,
	"Hans Verkuil" <hverkuil-cisco@xs4all.nl>,
	"AngeloGioacchino Del Regno"
	<angelogioacchino.delregno@collabora.com>,
	"Benjamin Gaignard" <benjamin.gaignard@collabora.com>,
	"Nícolas F . R . A . Prado" <nfraprado@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Fritz Koenig <frkoenig@chromium.org>,
	Daniel Vetter <daniel@ffwll.ch>,
	Steve Cho <stevecho@chromium.org>, <linux-media@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@mediatek.com>
Subject: [PATCH 1/2] media: mediatek: vcodec: fix decoder disable pm crash
Date: Tue, 28 Mar 2023 17:14:49 +0800	[thread overview]
Message-ID: <20230328091451.21979-1-yunfei.dong@mediatek.com> (raw)

Can't call pm_runtime_disable when the architecture support sub device for
'dev->pm.dev' is NUll, or will get below crash log.

[   10.771551] pc : _raw_spin_lock_irq+0x4c/0xa0
[   10.771556] lr : __pm_runtime_disable+0x30/0x130
[   10.771558] sp : ffffffc01e4cb800
[   10.771559] x29: ffffffc01e4cb800 x28: ffffffdf082108a8
[   10.771563] x27: ffffffc01e4cbd70 x26: ffffff8605df55f0
[   10.771567] x25: 0000000000000002 x24: 0000000000000002
[   10.771570] x23: ffffff85c0dc9c00 x22: 0000000000000001
[   10.771573] x21: 0000000000000001 x20: 0000000000000000
[   10.771577] x19: 00000000000000f4 x18: ffffffdf2e9fbe18
[   10.771580] x17: 0000000000000000 x16: ffffffdf2df13c74
[   10.771583] x15: 00000000000002ea x14: 0000000000000058
[   10.771587] x13: ffffffdf2de1b62c x12: ffffffdf2e9e30e4
[   10.771590] x11: 0000000000000000 x10: 0000000000000001
[   10.771593] x9 : 0000000000000000 x8 : 00000000000000f4
[   10.771596] x7 : 6bff6264632c6264 x6 : 0000000000008000
[   10.771600] x5 : 0080000000000000 x4 : 0000000000000001
[   10.771603] x3 : 0000000000000008 x2 : 0000000000000001
[   10.771608] x1 : 0000000000000000 x0 : 00000000000000f4
[   10.771613] Call trace:
[   10.771617]  _raw_spin_lock_irq+0x4c/0xa0
[   10.771620]  __pm_runtime_disable+0x30/0x130
[   10.771657]  mtk_vcodec_probe+0x69c/0x728 [mtk_vcodec_dec 800cc929d6631f79f9b273254c8db94d0d3500dc]
[   10.771662]  platform_drv_probe+0x9c/0xbc
[   10.771665]  really_probe+0x13c/0x3a0
[   10.771668]  driver_probe_device+0x84/0xc0
[   10.771671]  device_driver_attach+0x54/0x78

Fixes: ba31a5b39400 ("media: mtk-vcodec: Remove mtk_vcodec_release_dec_pm")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
- Won't crash when the driver running in error condition.
---
 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index bba7b932f4fa..2b6eaa222846 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -454,7 +454,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch))
 		destroy_workqueue(dev->core_workqueue);
 err_res:
-	pm_runtime_disable(dev->pm.dev);
+	if (!dev->vdec_pdata->is_subdev_supported)
+		pm_runtime_disable(dev->pm.dev);
 err_dec_pm:
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return ret;
-- 
2.18.0


WARNING: multiple messages have this Message-ID (diff)
From: Yunfei Dong <yunfei.dong@mediatek.com>
To: "Yunfei Dong" <yunfei.dong@mediatek.com>,
	"Chen-Yu Tsai" <wenst@chromium.org>,
	"Nicolas Dufresne" <nicolas@ndufresne.ca>,
	"Hans Verkuil" <hverkuil-cisco@xs4all.nl>,
	"AngeloGioacchino Del Regno"
	<angelogioacchino.delregno@collabora.com>,
	"Benjamin Gaignard" <benjamin.gaignard@collabora.com>,
	"Nícolas F . R . A . Prado" <nfraprado@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Fritz Koenig <frkoenig@chromium.org>,
	Daniel Vetter <daniel@ffwll.ch>,
	Steve Cho <stevecho@chromium.org>, <linux-media@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@mediatek.com>
Subject: [PATCH 1/2] media: mediatek: vcodec: fix decoder disable pm crash
Date: Tue, 28 Mar 2023 17:14:49 +0800	[thread overview]
Message-ID: <20230328091451.21979-1-yunfei.dong@mediatek.com> (raw)

Can't call pm_runtime_disable when the architecture support sub device for
'dev->pm.dev' is NUll, or will get below crash log.

[   10.771551] pc : _raw_spin_lock_irq+0x4c/0xa0
[   10.771556] lr : __pm_runtime_disable+0x30/0x130
[   10.771558] sp : ffffffc01e4cb800
[   10.771559] x29: ffffffc01e4cb800 x28: ffffffdf082108a8
[   10.771563] x27: ffffffc01e4cbd70 x26: ffffff8605df55f0
[   10.771567] x25: 0000000000000002 x24: 0000000000000002
[   10.771570] x23: ffffff85c0dc9c00 x22: 0000000000000001
[   10.771573] x21: 0000000000000001 x20: 0000000000000000
[   10.771577] x19: 00000000000000f4 x18: ffffffdf2e9fbe18
[   10.771580] x17: 0000000000000000 x16: ffffffdf2df13c74
[   10.771583] x15: 00000000000002ea x14: 0000000000000058
[   10.771587] x13: ffffffdf2de1b62c x12: ffffffdf2e9e30e4
[   10.771590] x11: 0000000000000000 x10: 0000000000000001
[   10.771593] x9 : 0000000000000000 x8 : 00000000000000f4
[   10.771596] x7 : 6bff6264632c6264 x6 : 0000000000008000
[   10.771600] x5 : 0080000000000000 x4 : 0000000000000001
[   10.771603] x3 : 0000000000000008 x2 : 0000000000000001
[   10.771608] x1 : 0000000000000000 x0 : 00000000000000f4
[   10.771613] Call trace:
[   10.771617]  _raw_spin_lock_irq+0x4c/0xa0
[   10.771620]  __pm_runtime_disable+0x30/0x130
[   10.771657]  mtk_vcodec_probe+0x69c/0x728 [mtk_vcodec_dec 800cc929d6631f79f9b273254c8db94d0d3500dc]
[   10.771662]  platform_drv_probe+0x9c/0xbc
[   10.771665]  really_probe+0x13c/0x3a0
[   10.771668]  driver_probe_device+0x84/0xc0
[   10.771671]  device_driver_attach+0x54/0x78

Fixes: ba31a5b39400 ("media: mtk-vcodec: Remove mtk_vcodec_release_dec_pm")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
- Won't crash when the driver running in error condition.
---
 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index bba7b932f4fa..2b6eaa222846 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -454,7 +454,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch))
 		destroy_workqueue(dev->core_workqueue);
 err_res:
-	pm_runtime_disable(dev->pm.dev);
+	if (!dev->vdec_pdata->is_subdev_supported)
+		pm_runtime_disable(dev->pm.dev);
 err_dec_pm:
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return ret;
-- 
2.18.0


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             reply	other threads:[~2023-03-28  9:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-28  9:14 Yunfei Dong [this message]
2023-03-28  9:14 ` [PATCH 1/2] media: mediatek: vcodec: fix decoder disable pm crash Yunfei Dong
2023-03-28  9:14 ` [PATCH 2/2] media: mediatek: vcodec: add remove function for decoder platform driver Yunfei Dong
2023-03-28  9:14   ` Yunfei Dong

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