usb: core: hub: Fix PM reference leak in usb_port_resume()
authorBixuan Cui <cuibixuan@huawei.com>
Thu, 8 Apr 2021 13:08:31 +0000 (21:08 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 May 2021 12:47:20 +0000 (14:47 +0200)
commit2946f95356cc93619e9972cae17bad973993ba45
tree8701d8d38e492a7a41d624ae6aae00b1f3596d27
parente82da9b21fedb455b23bcb5511cbde82ad6ed7d5
usb: core: hub: Fix PM reference leak in usb_port_resume()

[ Upstream commit 025f97d188006eeee4417bb475a6878d1e0eed3f ]

pm_runtime_get_sync will increment pm usage counter even it failed.
thus a pairing decrement is needed.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Link: https://lore.kernel.org/r/20210408130831.56239-1-cuibixuan@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/core/hub.c