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path: root/drivers/hwmon/applesmc.c
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Diffstat (limited to 'drivers/hwmon/applesmc.c')
-rw-r--r--drivers/hwmon/applesmc.c61
1 files changed, 25 insertions, 36 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 0f28d91f29d8..f085c18d2905 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -195,6 +195,9 @@ static unsigned int applesmc_accelerometer;
195/* Indicates whether this computer has light sensors and keyboard backlight. */ 195/* Indicates whether this computer has light sensors and keyboard backlight. */
196static unsigned int applesmc_light; 196static unsigned int applesmc_light;
197 197
198/* The number of fans handled by the driver */
199static unsigned int fans_handled;
200
198/* Indicates which temperature sensors set to use. */ 201/* Indicates which temperature sensors set to use. */
199static unsigned int applesmc_temperature_set; 202static unsigned int applesmc_temperature_set;
200 203
@@ -1492,39 +1495,24 @@ static int __init applesmc_init(void)
1492 1495
1493 /* create fan files */ 1496 /* create fan files */
1494 count = applesmc_get_fan_count(); 1497 count = applesmc_get_fan_count();
1495 if (count < 0) { 1498 if (count < 0)
1496 printk(KERN_ERR "applesmc: Cannot get the number of fans.\n"); 1499 printk(KERN_ERR "applesmc: Cannot get the number of fans.\n");
1497 } else { 1500 else
1498 printk(KERN_INFO "applesmc: %d fans found.\n", count); 1501 printk(KERN_INFO "applesmc: %d fans found.\n", count);
1499 1502
1500 switch (count) { 1503 if (count > 4) {
1501 default: 1504 count = 4;
1502 printk(KERN_WARNING "applesmc: More than 4 fans found," 1505 printk(KERN_WARNING "applesmc: More than 4 fans found,"
1503 " but at most 4 fans are supported" 1506 " but at most 4 fans are supported"
1504 " by the driver.\n"); 1507 " by the driver.\n");
1505 case 4: 1508 }
1506 ret = sysfs_create_group(&pdev->dev.kobj, 1509
1507 &fan_attribute_groups[3]); 1510 while (fans_handled < count) {
1508 if (ret) 1511 ret = sysfs_create_group(&pdev->dev.kobj,
1509 goto out_key_enumeration; 1512 &fan_attribute_groups[fans_handled]);
1510 case 3: 1513 if (ret)
1511 ret = sysfs_create_group(&pdev->dev.kobj, 1514 goto out_fans;
1512 &fan_attribute_groups[2]); 1515 fans_handled++;
1513 if (ret)
1514 goto out_key_enumeration;
1515 case 2:
1516 ret = sysfs_create_group(&pdev->dev.kobj,
1517 &fan_attribute_groups[1]);
1518 if (ret)
1519 goto out_key_enumeration;
1520 case 1:
1521 ret = sysfs_create_group(&pdev->dev.kobj,
1522 &fan_attribute_groups[0]);
1523 if (ret)
1524 goto out_fan_1;
1525 case 0:
1526 ;
1527 }
1528 } 1516 }
1529 1517
1530 for (i = 0; 1518 for (i = 0;
@@ -1593,10 +1581,10 @@ out_accelerometer:
1593 applesmc_release_accelerometer(); 1581 applesmc_release_accelerometer();
1594out_temperature: 1582out_temperature:
1595 sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); 1583 sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
1596 sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); 1584out_fans:
1597out_fan_1: 1585 while (fans_handled)
1598 sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); 1586 sysfs_remove_group(&pdev->dev.kobj,
1599out_key_enumeration: 1587 &fan_attribute_groups[--fans_handled]);
1600 sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); 1588 sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
1601out_name: 1589out_name:
1602 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); 1590 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
@@ -1622,8 +1610,9 @@ static void __exit applesmc_exit(void)
1622 if (applesmc_accelerometer) 1610 if (applesmc_accelerometer)
1623 applesmc_release_accelerometer(); 1611 applesmc_release_accelerometer();
1624 sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); 1612 sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
1625 sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); 1613 while (fans_handled)
1626 sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); 1614 sysfs_remove_group(&pdev->dev.kobj,
1615 &fan_attribute_groups[--fans_handled]);
1627 sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); 1616 sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
1628 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); 1617 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
1629 platform_device_unregister(pdev); 1618 platform_device_unregister(pdev);