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usb: cdns3: Fix runtime PM imbalance on error

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[ Upstream commit 07adc02254 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dinghao Liu
2021-04-12 13:49:07 +08:00
committed by Greg Kroah-Hartman
parent 1e5cab5020
commit 2f523cd4a9
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/cdns3/gadget.c
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@@ -3255,8 +3255,10 @@ static int __cdns3_gadget_init(struct cdns3 *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