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drm/lima: fix reference leak in lima_pm_busy
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in a reference leak here. A new function pm_runtime_resume_and_get is introduced in [0] to keep usage counter balanced. So We fix the reference leak by replacing it with new function. [0] commitdd8088d5a8
("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") Fixes:50de2e9ebb
("drm/lima: enable runtime pm") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201127094438.121003-1-miaoqinglang@huawei.com
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1 changed files with 1 additions and 1 deletions
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@ -201,7 +201,7 @@ static int lima_pm_busy(struct lima_device *ldev)
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int ret;
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/* resume GPU if it has been suspended by runtime PM */
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ret = pm_runtime_get_sync(ldev->dev);
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ret = pm_runtime_resume_and_get(ldev->dev);
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if (ret < 0)
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return ret;
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