Messages in this thread Patch in this message | | | From | Dinghao Liu <> | Subject | [PATCH] media: coda: Fix runtime PM imbalance in coda_probe | Date | Sat, 23 May 2020 18:03:32 +0800 |
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When coda_firmware_request() returns an error code, a pairing runtime PM usage counter decrement is needed to keep the counter balanced.
Also, the caller expects coda_probe() to increase PM usage counter, there should be a refcount decrement in coda_remove() to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> --- drivers/media/platform/coda/coda-common.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index d0d093dd8f7c..550e9a1266da 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -3119,6 +3119,8 @@ static int coda_probe(struct platform_device *pdev) return 0; err_alloc_workqueue: + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); destroy_workqueue(dev->workqueue); err_v4l2_register: v4l2_device_unregister(&dev->v4l2_dev); @@ -3136,6 +3138,7 @@ static int coda_remove(struct platform_device *pdev) } if (dev->m2m_dev) v4l2_m2m_release(dev->m2m_dev); + pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); v4l2_device_unregister(&dev->v4l2_dev); destroy_workqueue(dev->workqueue); -- 2.17.1
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