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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dinghao Liu <dinghao.liu@zju.edu.cn>,
	Peter Chen <peter.chen@nxp.com>, Felipe Balbi <balbi@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-usb@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 04/31] usb: cdns3: Fix runtime PM imbalance on error
Date: Thu,  3 Jun 2021 13:08:52 -0400	[thread overview]
Message-ID: <20210603170919.3169112-4-sashal@kernel.org> (raw)
In-Reply-To: <20210603170919.3169112-1-sashal@kernel.org>

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

[ 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>
---
 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 c0c39cf30387..f32f00c49571 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -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
-- 
2.30.2


  parent reply	other threads:[~2021-06-03 17:12 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 17:08 [PATCH AUTOSEL 5.4 01/31] ASoC: max98088: fix ni clock divider calculation Sasha Levin
2021-06-03 17:08 ` Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 02/31] spi: Fix spi device unregister flow Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 03/31] net/nfc/rawsock.c: fix a permission check bug Sasha Levin
2021-06-03 17:08 ` Sasha Levin [this message]
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 05/31] ASoC: Intel: bytcr_rt5640: Add quirk for the Glavey TM800A550L tablet Sasha Levin
2021-06-03 17:08   ` Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 06/31] ASoC: Intel: bytcr_rt5640: Add quirk for the Lenovo Miix 3-830 tablet Sasha Levin
2021-06-03 17:08   ` Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 07/31] vfio-ccw: Serialize FSM IDLE state with I/O completion Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 08/31] ASoC: sti-sas: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-06-03 17:08   ` Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 09/31] spi: sprd: Add " Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 10/31] isdn: mISDN: netjet: Fix crash in nj_probe: Sasha Levin
2021-06-03 17:08 ` [PATCH AUTOSEL 5.4 11/31] bonding: init notify_work earlier to avoid uninitialized use Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 12/31] netlink: disable IRQs for netlink_lock_table() Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 13/31] net: mdiobus: get rid of a BUG_ON() Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 14/31] cgroup: disable controllers at parse time Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 15/31] wq: handle VM suspension in stall detection Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 16/31] net/qla3xxx: fix schedule while atomic in ql_sem_spinlock Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 17/31] RDS tcp loopback connection can hang Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 18/31] scsi: bnx2fc: Return failure if io_req is already in ABTS processing Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 19/31] scsi: vmw_pvscsi: Set correct residual data length Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 20/31] scsi: hisi_sas: Drop free_irq() of devm_request_irq() allocated irq Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 21/31] scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 22/31] net: macb: ensure the device is available before accessing GEMGXL control registers Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 23/31] net: appletalk: cops: Fix data race in cops_probe1 Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 24/31] net: dsa: microchip: enable phy errata workaround on 9567 Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 25/31] nvme-fabrics: decode host pathing error for connect Sasha Levin
2021-06-03 17:09   ` Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 26/31] MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 27/31] dm verity: fix require_signatures module_param permissions Sasha Levin
2021-06-03 17:09   ` [dm-devel] " Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 28/31] bnx2x: Fix missing error code in bnx2x_iov_init_one() Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 29/31] nvme-tcp: remove incorrect Kconfig dep in BLK_DEV_NVME Sasha Levin
2021-06-03 17:09   ` Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 30/31] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Sasha Levin
2021-06-03 17:09   ` [PATCH AUTOSEL 5.4 30/31] powerpc/fsl: set fsl, i2c-erratum-a004447 " Sasha Levin
2021-06-03 17:09 ` [PATCH AUTOSEL 5.4 31/31] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 " Sasha Levin
2021-06-03 17:09   ` [PATCH AUTOSEL 5.4 31/31] powerpc/fsl: set fsl, i2c-erratum-a004447 " Sasha Levin

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