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usb: cdns3: Fix runtime PM imbalance on error

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When cdns3_gadget_start() fails, a pairing PM usage counter
decrement is needed to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20210412054908.7975-1-dinghao.liu@zju.edu.cn
Signed-off-by: Peter Chen <peter.chen@kernel.org>
This commit is contained in:
Dinghao Liu 2021-04-12 13:49:07 +08:00 • committed by Peter Chen
parent 6efb943b86
commit 07adc02254
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/cdns3/cdns3-gadget.c
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@ -3268,8 +3268,10 @@ static int __cdns3_gadget_init(struct cdns *cdns)
pm_runtime_get_sync(cdns->dev);
ret = cdns3_gadget_start(cdns);
if (ret)
if (ret) {
pm_runtime_put_sync(cdns->dev);
return ret;
}
/*
* Because interrupt line can be shared with other components in