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| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2021-04-08 15:24:02 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-22 12:28:00 +0200 |
| commit | 75420f9400a6792dc4b43e5a43ee0f105dd3f9ee (patch) | |
| tree | bc715243051fa605b0d83bd670c7fc058d8bf95c /drivers/pci | |
| parent | b6352e2e276469ce756e5d698ea95855535e62a4 (diff) | |
| download | kernel_replicant_linux-75420f9400a6792dc4b43e5a43ee0f105dd3f9ee.tar.gz kernel_replicant_linux-75420f9400a6792dc4b43e5a43ee0f105dd3f9ee.tar.bz2 kernel_replicant_linux-75420f9400a6792dc4b43e5a43ee0f105dd3f9ee.zip | |
PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe()
[ Upstream commit 1e29cd9983eba1b596bc07f94d81d728007f8a25 ]
pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.
Link: https://lore.kernel.org/r/20210408072402.15069-1-dinghao.liu@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/pcie-rcar-ep.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c index b4a288e24aaf..c91d85b15129 100644 --- a/drivers/pci/controller/pcie-rcar-ep.c +++ b/drivers/pci/controller/pcie-rcar-ep.c @@ -492,9 +492,9 @@ static int rcar_pcie_ep_probe(struct platform_device *pdev) pcie->dev = dev; pm_runtime_enable(dev); - err = pm_runtime_get_sync(dev); + err = pm_runtime_resume_and_get(dev); if (err < 0) { - dev_err(dev, "pm_runtime_get_sync failed\n"); + dev_err(dev, "pm_runtime_resume_and_get failed\n"); goto err_pm_disable; } |