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authorJiang Liu <jiang.liu@huawei.com>2012-09-18 15:19:49 +0900
committerBjorn Helgaas <bhelgaas@google.com>2012-09-24 15:29:40 -0600
commit8ee5bdf3e9c99808bf271aa5cc41d689e6d9d3eb (patch)
tree079476becf6c0791ff66db28a563eb2c8176f236 /drivers/acpi
parent059e4ba292c69cb400cda92fbd37f25d4eec564b (diff)
downloadlinux-linaro-stable-8ee5bdf3e9c99808bf271aa5cc41d689e6d9d3eb.tar.gz
PCI/ACPI: Use normal list for struct acpi_pci_driver
Use normal list for struct acpi_pci_driver to simplify code. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/pci_root.c16
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index ec54014c321c..68d679e21248 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -72,8 +72,8 @@ static struct acpi_driver acpi_pci_root_driver = {
};
static LIST_HEAD(acpi_pci_roots);
+static LIST_HEAD(acpi_pci_drivers);
-static struct acpi_pci_driver *sub_driver;
static DEFINE_MUTEX(osc_lock);
int acpi_pci_register_driver(struct acpi_pci_driver *driver)
@@ -81,10 +81,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
int n = 0;
struct acpi_pci_root *root;
- struct acpi_pci_driver **pptr = &sub_driver;
- while (*pptr)
- pptr = &(*pptr)->next;
- *pptr = driver;
+ list_add_tail(&driver->node, &acpi_pci_drivers);
if (!driver->add)
return 0;
@@ -103,14 +100,7 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
{
struct acpi_pci_root *root;
- struct acpi_pci_driver **pptr = &sub_driver;
- while (*pptr) {
- if (*pptr == driver)
- break;
- pptr = &(*pptr)->next;
- }
- BUG_ON(!*pptr);
- *pptr = (*pptr)->next;
+ list_del(&driver->node);
if (!driver->remove)
return;