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| author |   Dinghao Liu <dinghao.liu@zju.edu.cn> | 2021-04-08 15:24:02 +0800 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2021-08-05 14:08:57 +0100 |
| commit | 1e29cd9983eba1b596bc07f94d81d728007f8a25 (patch) | |
| tree | 9c5940b72c47fb6d67fe11604162c6dfa3ae3d61 | |
| parent | Linux 5.14-rc1 (diff) | |
| download | wireguard-linux-1e29cd9983eba1b596bc07f94d81d728007f8a25.tar.xz wireguard-linux-1e29cd9983eba1b596bc07f94d81d728007f8a25.zip | |
PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe()
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>
| -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; } |