linux-kernel - [PATCH AUTOSEL 5.5 408/542] drm/amdgpu: add the lost mutex

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Date:   Fri, 14 Feb 2020 10:46:40 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     "Pan, Xinhui" <Xinhui.Pan@....com>, Feifei Xu <Feifei.Xu@....com>,
        Christian König <christian.koenig@....com>,
        xinhui pan <xinhui.pan@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.5 408/542] drm/amdgpu: add the lost mutex_init back

From: "Pan, Xinhui" <Xinhui.Pan@....com>

[ Upstream commit bd0522112332663e386df1b8642052463ea9b3b9 ]

Initialize notifier_lock.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/1016
Reviewed-by: Feifei Xu <Feifei.Xu@....com>
Reviewed-by: Christian König <christian.koenig@....com>
Signed-off-by: xinhui pan <xinhui.pan@....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 332b9c24a2cd0..a2f788ad7e1c6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2797,6 +2797,7 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	mutex_init(&adev->notifier_lock);
 	mutex_init(&adev->virt.dpm_mutex);
 	mutex_init(&adev->psp.mutex);
+	mutex_init(&adev->notifier_lock);
 
 	r = amdgpu_device_check_arguments(adev);
 	if (r)
-- 
2.20.1