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drm/amdgpu: Don't leak runtime pm ref on driver load

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If an error occurs in amdgpu_device_init() after adev->rmmio has been
set, its caller amdgpu_driver_load_kms() will skip runtime pm
initialization and call amdgpu_driver_unload_kms(), which acquires a
runtime pm ref that is leaked.

Balance by releasing a runtime pm ref in the error path of
amdgpu_driver_load_kms().

Fixes: d38ceaf99e ("drm/amdgpu: add core driver (v4)")
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/9a53449865759d7499a439ca2776093ee117b1eb.1465392124.git.lukas@wunner.de
This commit is contained in:
Lukas Wunner 2016-06-08 18:47:27 +02:00 committed by Daniel Vetter
parent 4a7885476a
commit c9c9bbd754
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
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@ -137,9 +137,12 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
}
out:
if (r)
if (r) {
/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
if (adev->rmmio && amdgpu_device_is_px(dev))
pm_runtime_put_noidle(dev->dev);
amdgpu_driver_unload_kms(dev);
}
return r;
}