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authorGabor Juhos <juhosg@openwrt.org>2012-07-05 08:26:45 +0000
committerGabor Juhos <juhosg@openwrt.org>2012-07-05 08:26:45 +0000
commit7284cf73d69ffad645078ac5c7910913bf9757a5 (patch)
treef7b62c68bb0fc803e3e0ec7c410fe658249d3e32 /target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch
parent6b8392eb125419f4edcafbb8db41bcd07fad5be1 (diff)
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ar71xx: refactor PCI code to allow registering multiple PCI controllers
SVN-Revision: 32605
Diffstat (limited to 'target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch')
-rw-r--r--target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch b/target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch
new file mode 100644
index 0000000..fc1385f
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.3/148-MIPS-avoid-possible-resource-conflict-in-register_pc.patch
@@ -0,0 +1,35 @@
+From a018b28d3953a32008de839d997a992a724ae314 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Sun, 24 Jun 2012 17:40:45 +0200
+Subject: [PATCH 09/34] MIPS: avoid possible resource conflict in register_pci_controller
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/pci/pci.c | 15 +++++++++++++--
+ 1 files changed, 13 insertions(+), 2 deletions(-)
+
+--- a/arch/mips/pci/pci.c
++++ b/arch/mips/pci/pci.c
+@@ -127,9 +127,20 @@ static DEFINE_MUTEX(pci_scan_mutex);
+
+ void __devinit register_pci_controller(struct pci_controller *hose)
+ {
+- if (request_resource(&iomem_resource, hose->mem_resource) < 0)
++ struct resource *parent;
++
++ parent = hose->mem_resource->parent;
++ if (!parent)
++ parent = &iomem_resource;
++
++ if (request_resource(parent, hose->mem_resource) < 0)
+ goto out;
+- if (request_resource(&ioport_resource, hose->io_resource) < 0) {
++
++ parent = hose->io_resource->parent;
++ if (!parent)
++ parent = &ioport_resource;
++
++ if (request_resource(parent, hose->io_resource) < 0) {
+ release_resource(hose->mem_resource);
+ goto out;
+ }