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drm/amdgpu: fix pci device refcount leak

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[ Upstream commit b85e285e3d ]

As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put().

So before returning from amdgpu_device_resume|suspend_display_audio(),
pci_dev_put() is called to avoid refcount leak.

Fixes: 3f12acc8d6 ("drm/amdgpu: put the audio codec into suspend state before gpu reset V3")
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2022-11-17 23:00:03 +08:00 • committed by Greg Kroah-Hartman
commit 3725a8f26b
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -4443,6 +4443,8 @@ static void amdgpu_device_resume_display_audio(struct amdgpu_device *adev)
pm_runtime_enable(&(p->dev));
pm_runtime_resume(&(p->dev));
}
pci_dev_put(p);
}
static int amdgpu_device_suspend_display_audio(struct amdgpu_device *adev)
@ -4481,6 +4483,7 @@ static int amdgpu_device_suspend_display_audio(struct amdgpu_device *adev)
if (expires < ktime_get_mono_fast_ns()) {
dev_warn(adev->dev, "failed to suspend display audio\n");
pci_dev_put(p);
/* TODO: abort the succeeding gpu reset? */
return -ETIMEDOUT;
}
@ -4488,6 +4491,7 @@ static int amdgpu_device_suspend_display_audio(struct amdgpu_device *adev)
pm_runtime_disable(&(p->dev));
pci_dev_put(p);
return 0;
}