From: Dinghao Liu dinghao.liu@zju.edu.cn

stable inclusion from stable-v5.10.44 commit 2f523cd4a9311cba629facc7d353eabbd492bd5b bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=345 CVE: NA

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[ Upstream commit 07adc0225484fc199e3dc15ec889f75f498c4fca ]

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 Signed-off-by: Xu Zehui zehuixu@whu.edu.cn --- drivers/usb/cdns3/gadget.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c index 0aa85cc07ff1..c24c0e3440e3 100644 --- a/drivers/usb/cdns3/gadget.c +++ b/drivers/usb/cdns3/gadget.c @@ -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