From: Navid Emamdoost <navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Lorenzo Pieralisi
<lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>,
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Jonathan Hunter
<jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: emamd001-OJFnDUYgAso@public.gmane.org,
wu000273-OJFnDUYgAso@public.gmane.org,
kjlu-OJFnDUYgAso@public.gmane.org,
smccaman-OJFnDUYgAso@public.gmane.org,
Navid Emamdoost
<navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH] PCI: tegra: handle failure case of pm_runtime_get_sync
Date: Thu, 4 Jun 2020 22:12:39 -0500 [thread overview]
Message-ID: <20200605031239.6638-1-navid.emamdoost@gmail.com> (raw)
Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.
Signed-off-by: Navid Emamdoost <navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/pci/controller/pci-tegra.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 3e64ba6a36a8..3d4b448fd8df 100644
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -2712,6 +2712,7 @@ 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);
+ pm_runtime_put_sync(pcie->dev);
goto teardown_msi;
}
--
2.17.1
next reply other threads:[~2020-06-05 3:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 3:12 Navid Emamdoost [this message]
2020-06-05 5:58 ` [PATCH] PCI: tegra: handle failure case of pm_runtime_get_sync Jon Hunter
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