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authorDinghao Liu <dinghao.liu@zju.edu.cn>2020-05-21 05:13:49 +0200
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-05-29 12:24:31 +0200
commit1c1dbb2c02623db18a50c61b175f19aead800b4e (patch)
tree5817e6275201d6485af568f7cd0c6f5afa0b245d /drivers/pci/controller/dwc/pcie-tegra194.c
parentPCI: tegra: Fix reporting GPIO error value (diff)
downloadlinux-1c1dbb2c02623db18a50c61b175f19aead800b4e.tar.xz
linux-1c1dbb2c02623db18a50c61b175f19aead800b4e.zip
PCI: tegra194: Fix runtime PM imbalance on error
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. Link: https://lore.kernel.org/r/20200521031355.7022-1-dinghao.liu@zju.edu.cn Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Vidya Sagar <vidyas@nvidia.com>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-tegra194.c')
-rw-r--r--drivers/pci/controller/dwc/pcie-tegra194.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index ae30a2fd3716..2c0d2ce16b47 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1623,7 +1623,7 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie)
ret = pinctrl_pm_select_default_state(dev);
if (ret < 0) {
dev_err(dev, "Failed to configure sideband pins: %d\n", ret);
- goto fail_pinctrl;
+ goto fail_pm_get_sync;
}
tegra_pcie_init_controller(pcie);
@@ -1650,9 +1650,8 @@ 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;
}