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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-04-08 15:39:54 +0000
committerLen Brown <len.brown@intel.com>2009-04-11 00:36:40 -0400
commitbf04a77227db76f163bc2355ef4e176794987be2 (patch)
treebd31c578e7759c8c9467204588c06a215e336f20 /drivers/acpi
parent1bce81131c71064bc3163078f24545b839a31967 (diff)
ACPI: button: cache hid/name/class pointers
This patch adds temporaries to cache the acpi_device_hid(), acpi_device_name(), and acpi_device_class() pointers so we don't have to clutter the code with so many uses of those interfaces. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/button.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 8ef8f443f539..9f6d2e6844a7 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -300,6 +300,7 @@ static int acpi_button_add(struct acpi_device *device)
{
struct acpi_button *button;
struct input_dev *input;
+ char *hid, *name, *class;
int error;
button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
@@ -315,40 +316,41 @@ static int acpi_button_add(struct acpi_device *device)
goto err_free_button;
}
+ hid = acpi_device_hid(device);
+ name = acpi_device_name(device);
+ class = acpi_device_class(device);
+
/*
* Determine the button type (via hid), as fixed-feature buttons
* need to be handled a bit differently than generic-space.
*/
- if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) {
+ if (!strcmp(hid, ACPI_BUTTON_HID_POWER)) {
button->type = ACPI_BUTTON_TYPE_POWER;
- strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(name, ACPI_BUTTON_DEVICE_NAME_POWER);
+ sprintf(class, "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER);
- } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) {
+ } else if (!strcmp(hid, ACPI_BUTTON_HID_POWERF)) {
button->type = ACPI_BUTTON_TYPE_POWERF;
- strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_POWERF);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(name, ACPI_BUTTON_DEVICE_NAME_POWERF);
+ sprintf(class, "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER);
- } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) {
+ } else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEP)) {
button->type = ACPI_BUTTON_TYPE_SLEEP;
- strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(name, ACPI_BUTTON_DEVICE_NAME_SLEEP);
+ sprintf(class, "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP);
- } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) {
+ } else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEPF)) {
button->type = ACPI_BUTTON_TYPE_SLEEPF;
- strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_SLEEPF);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(name, ACPI_BUTTON_DEVICE_NAME_SLEEPF);
+ sprintf(class, "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP);
- } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) {
+ } else if (!strcmp(hid, ACPI_BUTTON_HID_LID)) {
button->type = ACPI_BUTTON_TYPE_LID;
- strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(name, ACPI_BUTTON_DEVICE_NAME_LID);
+ sprintf(class, "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
} else {
- printk(KERN_ERR PREFIX "Unsupported hid [%s]\n",
- acpi_device_hid(device));
+ printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", hid);
error = -ENODEV;
goto err_free_input;
}
@@ -357,10 +359,9 @@ static int acpi_button_add(struct acpi_device *device)
if (error)
goto err_free_input;
- snprintf(button->phys, sizeof(button->phys),
- "%s/button/input0", acpi_device_hid(device));
+ snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid);
- input->name = acpi_device_name(device);
+ input->name = name;
input->phys = button->phys;
input->id.bustype = BUS_HOST;
input->id.product = button->type;
@@ -401,8 +402,7 @@ static int acpi_button_add(struct acpi_device *device)
device->wakeup.state.enabled = 1;
}
- printk(KERN_INFO PREFIX "%s [%s]\n",
- acpi_device_name(device), acpi_device_bid(device));
+ printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device));
return 0;
err_remove_fs: