reset: renesas: Fix Runtime PM usage
authorHeiner Kallweit <hkallweit1@gmail.com>
Wed, 15 Dec 2021 10:14:23 +0000 (11:14 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Jan 2022 14:35:16 +0000 (15:35 +0100)
commitb381e0f98711908b4f23865e76ebc8232f355499
tree0c3042eff98adafbf39f0d6ee343ac4448396ea3
parent550acd770f9f72c7547ffb1900401e73b48a91b6
reset: renesas: Fix Runtime PM usage

commit 92c959bae2e54ba1e2540ba5f813f7752bd76be1 upstream.

If pm_runtime_resume_and_get() fails then it returns w/o the RPM usage
counter being incremented. In this case call pm_runtime_put() in
remove() will result in a usage counter imbalance. Therefore check the
return code of pm_runtime_resume_and_get() and bail out in case of error.

Fixes: bee08559701f ("reset: renesas: Add RZ/G2L usbphy control driver")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/ec24e13f-0530-b091-7a08-864577b9b3be@gmail.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/reset/reset-rzg2l-usbphy-ctrl.c