From: Zou Wei <zou_wei@huawei.com>
To: <marek.vasut+renesas@gmail.com>,
<yoshihiro.shimoda.uh@renesas.com>, <lorenzo.pieralisi@arm.com>,
<robh@kernel.org>, <kw@linux.com>, <bhelgaas@google.com>
Cc: <linux-pci@vger.kernel.org>, <linux-renesas-soc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Zou Wei <zou_wei@huawei.com>
Subject: [PATCH -next] PCI: rcar: Fix PM reference leak in rcar_pcie_ep_probe()
Date: Fri, 21 May 2021 21:05:54 +0800 [thread overview]
Message-ID: <1621602354-109955-1-git-send-email-zou_wei@huawei.com> (raw)
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
---
drivers/pci/controller/pcie-rcar-ep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c
index b4a288e..8a8c46c 100644
--- a/drivers/pci/controller/pcie-rcar-ep.c
+++ b/drivers/pci/controller/pcie-rcar-ep.c
@@ -492,7 +492,7 @@ 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");
goto err_pm_disable;
--
2.6.2
reply other threads:[~2021-05-21 12:47 UTC|newest]
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