PCI: iproc: Directly add PCI resources

The struct iproc_pcie.resources member was pointing to a stack variable and
is invalid after the registration function returned.

Remove this pointer and add a parameter to the function.

Tested-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>

drivers/pci/host/pcie-iproc-bcma.c

@@ -62,11 +62,9 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
 	res_mem.flags = IORESOURCE_MEM;
 	pci_add_resource(&res, &res_mem);
 
-	pcie->resources = &res;
-
 	pcie->map_irq = iproc_pcie_bcma_map_irq;
 
-	ret = iproc_pcie_setup(pcie);
+	ret = iproc_pcie_setup(pcie, &res);
 	if (ret) {
 		dev_err(pcie->dev, "PCIe controller setup failed\n");
 		return ret;

drivers/pci/host/pcie-iproc-platform.c

@@ -69,11 +69,9 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	pcie->resources = &res;
-
 	pcie->map_irq = of_irq_parse_and_map_pci;
 
-	ret = iproc_pcie_setup(pcie);
+	ret = iproc_pcie_setup(pcie, &res);
 	if (ret) {
 		dev_err(pcie->dev, "PCIe controller setup failed\n");
 		return ret;

drivers/pci/host/pcie-iproc.c

@@ -183,7 +183,7 @@ static void iproc_pcie_enable(struct iproc_pcie *pcie)
 	writel(SYS_RC_INTX_MASK, pcie->base + SYS_RC_INTX_EN);
 }
 
-int iproc_pcie_setup(struct iproc_pcie *pcie)
+int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
 {
 	int ret;
 	struct pci_bus *bus;
@@ -211,7 +211,7 @@ int iproc_pcie_setup(struct iproc_pcie *pcie)
 	pcie->sysdata.private_data = pcie;
 
 	bus = pci_create_root_bus(pcie->dev, 0, &iproc_pcie_ops,
-				  &pcie->sysdata, pcie->resources);
+				  &pcie->sysdata, res);
 	if (!bus) {
 		dev_err(pcie->dev, "unable to create PCI root bus\n");
 		ret = -ENOMEM;

drivers/pci/host/pcie-iproc.h

@@ -29,15 +29,14 @@
 struct iproc_pcie {
 	struct device *dev;
 	void __iomem *base;
-	struct list_head *resources;
 	struct pci_sys_data sysdata;
 	struct pci_bus *root_bus;
 	struct phy *phy;
 	int irqs[IPROC_PCIE_MAX_NUM_IRQS];
 	int (*map_irq)(const struct pci_dev *, u8, u8);
 };
 
-int iproc_pcie_setup(struct iproc_pcie *pcie);
+int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res);
 int iproc_pcie_remove(struct iproc_pcie *pcie);
 
 #endif /* _PCIE_IPROC_H */