39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Qinglang Miao <miaoqinglang@huawei.com>
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Date: Sat, 28 Nov 2020 16:10:04 +0000
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Subject: drm/panfrost: fix reference leak in panfrost_job_hw_submit
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pm_runtime_get_sync will increment pm usage counter even it
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failed. Forgetting to putting operation will result in a
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reference leak here.
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A new function pm_runtime_resume_and_get is introduced in
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[0] to keep usage counter balanced. So We fix the reference
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leak by replacing it with new funtion.
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[0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
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Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver")
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Reported-by: Hulk Robot <hulkci@huawei.com>
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Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
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---
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drivers/gpu/drm/panfrost/panfrost_job.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c
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index dbc597ab46fb..5be832c6a89d 100644
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--- a/drivers/gpu/drm/panfrost/panfrost_job.c
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+++ b/drivers/gpu/drm/panfrost/panfrost_job.c
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@@ -194,7 +194,7 @@ static void panfrost_job_hw_submit(struct panfrost_job *job, int js)
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panfrost_devfreq_record_busy(&pfdev->pfdevfreq);
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- ret = pm_runtime_get_sync(pfdev->dev);
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+ ret = pm_runtime_resume_and_get(pfdev->dev);
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if (ret < 0)
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return;
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--
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Armbian
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