]> git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/commit
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)
committerStefan Bader <stefan.bader@canonical.com>
Wed, 19 May 2021 08:59:38 +0000 (10:59 +0200)
commit97ab388de7a0ead7a9f20fa6462e4f4fbd704375
tree437e43eedaae8c48bffa2b98c2d86d28c96fc31c
parentb8ad11515d7c778660a516ce7aa3c71712d58979
usb: core: hub: Fix PM reference leak in usb_port_resume()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
drivers/usb/core/hub.c