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| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2020-05-21 10:47:09 +0800 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-06-01 09:58:59 +0100 |
| commit | fcee90cdf6f3a3a371add04d41528d5ba9c3b411 (patch) | |
| tree | 8a9de012210b137c678642e385ef66b725898714 /drivers/pci | |
| parent | 1c1dbb2c02623db18a50c61b175f19aead800b4e (diff) | |
| download | linux-fcee90cdf6f3a3a371add04d41528d5ba9c3b411.tar.bz2 | |
PCI: tegra: 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.
Also, call pm_runtime_disable() when pm_runtime_get_sync() returns
an error code.
Link: https://lore.kernel.org/r/20200521024709.2368-1-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>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/pci-tegra.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c index e3e917243e10..235b456698fc 100644 --- a/drivers/pci/controller/pci-tegra.c +++ b/drivers/pci/controller/pci-tegra.c @@ -2712,7 +2712,7 @@ static int tegra_pcie_probe(struct platform_device *pdev) err = pm_runtime_get_sync(pcie->dev); if (err < 0) { dev_err(dev, "fail to enable pcie controller: %d\n", err); - goto teardown_msi; + goto pm_runtime_put; } host->busnr = bus->start; @@ -2746,7 +2746,6 @@ static int tegra_pcie_probe(struct platform_device *pdev) pm_runtime_put: pm_runtime_put_sync(pcie->dev); pm_runtime_disable(pcie->dev); -teardown_msi: tegra_pcie_msi_teardown(pcie); put_resources: tegra_pcie_put_resources(pcie); |