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drm/mediatek: Fix PM reference leak in mtk_crtc_ddp_hw_init()

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[ Upstream commit 69777e6ca396f0a7e1baff40fcad4a9d3d445b7a ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Li <wangli74@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wang Li 2021-04-10 03:48:41 +00:00 committed by Greg Kroah-Hartman
parent 45cc7a653f
commit 1a2d21e266
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/mediatek/mtk_drm_crtc.c
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@ -240,7 +240,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
drm_connector_list_iter_end(&conn_iter);
}
ret = pm_runtime_get_sync(crtc->dev->dev);
ret = pm_runtime_resume_and_get(crtc->dev->dev);
if (ret < 0) {
DRM_ERROR("Failed to enable power domain: %d\n", ret);
return ret;