linux-kernel - [PATCH] PCI: rockchip: don't leak the PCI resource list

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Message-Id: <20170320224936.28605-1-briannorris@chromium.org>
Date:   Mon, 20 Mar 2017 15:49:36 -0700
From:   Brian Norris <briannorris@...omium.org>
To:     Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     <linux-kernel@...r.kernel.org>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Wenrui Li <wenrui.li@...k-chips.com>,
        linux-pci@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH] PCI: rockchip: don't leak the PCI resource list

This list is local to the probe() function. We should free it up in both
the success case and the error case, but currently we're only freeing it
in the error case (see commit f1d722b607d6 ("PCI: rockchip: Fix
rockchip_pcie_probe() error path to free resource list")).

Caught by kmemleak, when doing repeated bind/unbind tests.

Signed-off-by: Brian Norris <briannorris@...omium.org>
---
 drivers/pci/host/pcie-rockchip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index bd6df7254de4..8087a0698d65 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -1396,6 +1396,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
 		goto err_free_res;
 	}
 	rockchip->root_bus = bus;
+	pci_free_resource_list(&res);
 
 	pci_bus_size_bridges(bus);
 	pci_bus_assign_resources(bus);
-- 
2.12.0.367.g23dc2f6d3c-goog