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usb: cdns3: Fix runtime PM imbalance on error

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[ Upstream commit e5b913496099527abe46e175e5e2c844367bded0 ]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Felipe Balbi <balbi@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
commit 02851cb0ca
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/cdns3/gadget.c
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@ -2706,8 +2706,10 @@ 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