mn10300: Use pci_claim_resource
David Howells [Wed, 27 Oct 2010 16:28:34 +0000 (17:28 +0100)]
Instead of open-coding pci_find_parent_resource and request_resource,
just call pci_claim_resource.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>

arch/mn10300/unit-asb2305/pci-asb2305.c

index 45b40ac..8e6763e 100644 (file)
@@ -93,7 +93,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
        struct pci_bus *bus;
        struct pci_dev *dev;
        int idx;
-       struct resource *r, *pr;
+       struct resource *r;
 
        /* Depth-First Search on bus tree */
        list_for_each_entry(bus, bus_list, node) {
@@ -105,10 +105,8 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
                                r = &dev->resource[idx];
                                if (!r->flags)
                                        continue;
-                               pr = pci_find_parent_resource(dev, r);
                                if (!r->start ||
-                                   !pr ||
-                                   request_resource(pr, r) < 0) {
+                                   pci_claim_resource(dev, idx) < 0) {
                                        printk(KERN_ERR "PCI:"
                                               " Cannot allocate resource"
                                               " region %d of bridge %s\n",
@@ -131,7 +129,7 @@ static void __init pcibios_allocate_resources(int pass)
        struct pci_dev *dev = NULL;
        int idx, disabled;
        u16 command;
-       struct resource *r, *pr;
+       struct resource *r;
 
        for_each_pci_dev(dev) {
                pci_read_config_word(dev, PCI_COMMAND, &command);
@@ -150,8 +148,7 @@ static void __init pcibios_allocate_resources(int pass)
                                    " (f=%lx, d=%d, p=%d)\n",
                                    pci_name(dev), r->start, r->end, r->flags,
                                    disabled, pass);
-                               pr = pci_find_parent_resource(dev, r);
-                               if (!pr || request_resource(pr, r) < 0) {
+                               if (pci_claim_resource(dev, idx) < 0) {
                                        printk(KERN_ERR "PCI:"
                                               " Cannot allocate resource"
                                               " region %d of device %s\n",
@@ -184,7 +181,7 @@ static void __init pcibios_allocate_resources(int pass)
 static int __init pcibios_assign_resources(void)
 {
        struct pci_dev *dev = NULL;
-       struct resource *r, *pr;
+       struct resource *r;
 
        if (!(pci_probe & PCI_ASSIGN_ROMS)) {
                /* Try to use BIOS settings for ROMs, otherwise let
@@ -194,8 +191,7 @@ static int __init pcibios_assign_resources(void)
                        r = &dev->resource[PCI_ROM_RESOURCE];
                        if (!r->flags || !r->start)
                                continue;
-                       pr = pci_find_parent_resource(dev, r);
-                       if (!pr || request_resource(pr, r) < 0) {
+                       if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
                                r->end -= r->start;
                                r->start = 0;
                        }