linux-kernel - [PATCH] PCI: rcar-pcie: Fix memory leak when no PCIe card is inserted

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Message-Id: <20170802071320.28674-1-harunobu.kurokawa.dn@renesas.com>
Date:   Wed,  2 Aug 2017 16:13:20 +0900
From:   Harunobu Kurokawa <harunobu.kurokawa.dn@...esas.com>
To:     horms@...ge.net.au, bhelgaas@...gle.com, linux-pci@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Harunobu Kurokawa <harunobu.kurokawa.dn@...esas.com>
Subject: [PATCH] PCI: rcar-pcie: Fix memory leak when no PCIe card is inserted

When no PCIe card is inserted, there is a memory leak as
pci_free_resource_list is not called before returning.

Signed-off-by: Harunobu Kurokawa <harunobu.kurokawa.dn@...esas.com>
---
 drivers/pci/host/pcie-rcar.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index ac80fbb..9b06de6 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1190,14 +1190,15 @@ static int rcar_pcie_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_free_bridge:
-	pci_free_host_bridge(bridge);
-
 err_pm_put:
 	pm_runtime_put(dev);
 
 err_pm_disable:
 	pm_runtime_disable(dev);
+
+err_free_bridge:
+	pci_free_host_bridge(bridge);
+	pci_free_resource_list(&pcie->resources);
 	return err;
 }
 
-- 
2.9.2