linux-kernel - [PATCH 4.2 039/110] drm/amdgpu: add missing dpm check for KV dpm late init

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Message-Id: <20151106191705.324451462@linuxfoundation.org>
Date:	Fri,  6 Nov 2015 11:18:46 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.2 039/110] drm/amdgpu: add missing dpm check for KV dpm late init

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@....com>

commit 677c884ff6370add1360e2b9558285355ebe2b36 upstream.

Skip dpm late init if dpm is disabled.

Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/kv_dpm.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -2997,6 +2997,9 @@ static int kv_dpm_late_init(void *handle
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	int ret;
 
+	if (!amdgpu_dpm)
+		return 0;
+
 	/* init the sysfs and debugfs files late */
 	ret = amdgpu_pm_sysfs_init(adev);
 	if (ret)


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