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* [PATCH] PCI: dwc: pci-dra7xx: fix runtime pm imbalance on error
@ 2020-05-20  8:47 Dinghao Liu
  0 siblings, 0 replies; only message in thread
From: Dinghao Liu @ 2020-05-20  8:47 UTC (permalink / raw)
  To: dinghao.liu, kjlu
  Cc: Kishon Vijay Abraham I, Lorenzo Pieralisi, Rob Herring,
	Bjorn Helgaas, linux-omap, linux-pci, linux-kernel

pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
 drivers/pci/controller/dwc/pci-dra7xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 3b0e58f2de58..8fd9f2281e02 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -1000,9 +1000,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 	return 0;
 
 err_gpio:
-	pm_runtime_put(dev);
-
 err_get_sync:
+	pm_runtime_put(dev);
 	pm_runtime_disable(dev);
 	dra7xx_pcie_disable_phy(dra7xx);
 
-- 
2.17.1


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2020-05-20  8:47 [PATCH] PCI: dwc: pci-dra7xx: fix runtime pm imbalance on error Dinghao Liu

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