linux-kernel - [PATCH AUTOSEL 4.19 8/8] drm/amdgpu: Release 'adev->pm.fw' before return in 'amdgpu_device_need

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Message-ID: <20240128161704.205756-8-sashal@kernel.org>
Date: Sun, 28 Jan 2024 11:16:59 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Srinivasan Shanmugam <srinivasan.shanmugam@....com>,
	Monk Liu <Monk.Liu@....com>,
	Christian König <christian.koenig@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Lijo Lazar <lijo.lazar@....com>,
	Sasha Levin <sashal@...nel.org>,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	Hawking.Zhang@....com,
	mario.limonciello@....com,
	candice.li@....com,
	le.ma@....com,
	victorchengchi.lu@....com,
	shashank.sharma@....com,
	andrealmeid@...lia.com,
	hamza.mahfooz@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 4.19 8/8] drm/amdgpu: Release 'adev->pm.fw' before return in 'amdgpu_device_need_post()'

From: Srinivasan Shanmugam <srinivasan.shanmugam@....com>

[ Upstream commit 8a44fdd3cf91debbd09b43bd2519ad2b2486ccf4 ]

In function 'amdgpu_device_need_post(struct amdgpu_device *adev)' -
'adev->pm.fw' may not be released before return.

Using the function release_firmware() to release adev->pm.fw.

Thus fixing the below:
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:1571 amdgpu_device_need_post() warn: 'adev->pm.fw' from request_firmware() not released on lines: 1554.

Cc: Monk Liu <Monk.Liu@....com>
Cc: Christian König <christian.koenig@....com>
Cc: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@....com>
Suggested-by: Lijo Lazar <lijo.lazar@....com>
Reviewed-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c84f475d4f13..ae28f72c73ef 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -823,6 +823,7 @@ bool amdgpu_device_need_post(struct amdgpu_device *adev)
 				return true;
 
 			fw_ver = *((uint32_t *)adev->pm.fw->data + 69);
+			release_firmware(adev->pm.fw);
 			if (fw_ver < 0x00160e00)
 				return true;
 		}
-- 
2.43.0