From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Rob Herring <robh@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Vidya Sagar <vidyas@nvidia.com>,
Andrew Murray <amurray@thegoodpenguin.co.uk>,
linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] PCI: tegra: fix runtime pm imbalance on error
Date: Wed, 20 May 2020 16:52:23 +0800 [thread overview]
Message-ID: <20200520085231.32552-1-dinghao.liu@zju.edu.cn> (raw)
pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
drivers/pci/controller/dwc/pcie-tegra194.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index ae30a2fd3716..a69f9e49dcb5 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1651,8 +1651,8 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie)
fail_host_init:
tegra_pcie_deinit_controller(pcie);
fail_pinctrl:
- pm_runtime_put_sync(dev);
fail_pm_get_sync:
+ pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
return ret;
}
--
2.17.1
next reply other threads:[~2020-05-20 9:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 8:52 Dinghao Liu [this message]
2020-05-20 9:59 ` [PATCH] PCI: tegra: fix runtime pm imbalance on error Thierry Reding
2020-05-20 16:37 ` Bjorn Helgaas
2020-05-20 18:09 ` Vidya Sagar
2020-05-29 10:23 ` Lorenzo Pieralisi
2020-05-29 10:58 ` Vidya Sagar
2020-05-21 3:00 ` dinghao.liu
2020-05-21 3:06 ` dinghao.liu
-- strict thread matches above, loose matches on Subject: below --
2020-05-20 8:40 Dinghao Liu
2020-05-20 9:40 ` Thierry Reding
2020-05-20 16:42 ` Bjorn Helgaas
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