[PATCHv2 1/4] PCI: dwc: fix potential memory leak

[Z.q. Hou]

From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>

Free the allocated pci_host_bridge struct when failed to get
host bridge resources, and free the resource windows before
free the bridge.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
Acked-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
---
V2:
 - Reworded the subject.

 drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 29a05759a294..ecacce016489 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -353,7 +353,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
 	ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
 					&bridge->windows, &pp->io_base);
 	if (ret)
-		return ret;
+		goto error;
 
 	ret = devm_request_pci_bus_resources(dev, &bridge->windows);
 	if (ret)
@@ -502,6 +502,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
 	return 0;
 
 error:
+	pci_free_resource_list(&bridge->windows);
 	pci_free_host_bridge(bridge);
 	return ret;
 }
-- 
2.17.1