github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-08 14:42:37 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

PCI: tegra: Fix runtime PM imbalance on error

Browse Source 
[ Upstream commit fcee90cdf6 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dinghao Liu 2020-05-21 10:47:09 +08:00 committed by Greg Kroah-Hartman
parent 2138dc84df
commit 23c233c606
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/pci/controller/pci-tegra.c
View File

@ -2400,7 +2400,7 @@ 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;
}
err = tegra_pcie_request_resources(pcie);
@ -2440,7 +2440,6 @@ 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);