diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-07 01:19:23 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-07 23:41:46 +0200 |
| commit | bdbdbf91081250657d018fc66d7cd0c07f337070 (patch) | |
| tree | 0330dfbce7c2d6d40dc2e5b75de43e7e88d67ae5 /drivers/acpi/glue.c | |
| parent | ACPI: Do not fail acpi_bind_one() if device is already bound correctly (diff) | |
| download | linux-bdbdbf91081250657d018fc66d7cd0c07f337070.tar.xz linux-bdbdbf91081250657d018fc66d7cd0c07f337070.zip | |
ACPI: Reduce acpi_bind_one()/acpi_unbind_one() code duplication
Move some duplicated code from acpi_bind_one() and acpi_unbind_one()
into a separate function and make that function use snprintf()
instead of sprintf() for extra safety.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Diffstat (limited to 'drivers/acpi/glue.c')
| -rw-r--r-- | drivers/acpi/glue.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 48cc4c98e18b..92cacb12ef5c 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -173,6 +173,15 @@ acpi_handle acpi_find_child(acpi_handle parent, u64 addr, bool is_bridge) } EXPORT_SYMBOL_GPL(acpi_find_child); +static void acpi_physnode_link_name(char *buf, unsigned int node_id) +{ + if (node_id > 0) + snprintf(buf, PHYSICAL_NODE_NAME_SIZE, + PHYSICAL_NODE_STRING "%u", node_id); + else + strcpy(buf, PHYSICAL_NODE_STRING); +} + int acpi_bind_one(struct device *dev, acpi_handle handle) { struct acpi_device *acpi_dev; @@ -238,11 +247,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) if (!ACPI_HANDLE(dev)) ACPI_HANDLE_SET(dev, acpi_dev->handle); - if (!physical_node->node_id) - strcpy(physical_node_name, PHYSICAL_NODE_STRING); - else - sprintf(physical_node_name, - "physical_node%d", physical_node->node_id); + acpi_physnode_link_name(physical_node_name, node_id); retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj, physical_node_name); retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj, @@ -296,12 +301,7 @@ int acpi_unbind_one(struct device *dev) acpi_dev->physical_node_count--; - if (!entry->node_id) - strcpy(physical_node_name, PHYSICAL_NODE_STRING); - else - sprintf(physical_node_name, - "physical_node%d", entry->node_id); - + acpi_physnode_link_name(physical_node_name, entry->node_id); sysfs_remove_link(&acpi_dev->dev.kobj, physical_node_name); sysfs_remove_link(&dev->kobj, "firmware_node"); ACPI_HANDLE_SET(dev, NULL); |