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path: root/drivers/acpi/fan_attr.c
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Diffstat (limited to 'drivers/acpi/fan_attr.c')
-rw-r--r--drivers/acpi/fan_attr.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/acpi/fan_attr.c b/drivers/acpi/fan_attr.c
index f4f6e2381f1d..22d29ac2447c 100644
--- a/drivers/acpi/fan_attr.c
+++ b/drivers/acpi/fan_attr.c
@@ -75,15 +75,6 @@ int acpi_fan_create_attributes(struct acpi_device *device)
struct acpi_fan *fan = acpi_driver_data(device);
int i, status;
- sysfs_attr_init(&fan->fine_grain_control.attr);
- fan->fine_grain_control.show = show_fine_grain_control;
- fan->fine_grain_control.store = NULL;
- fan->fine_grain_control.attr.name = "fine_grain_control";
- fan->fine_grain_control.attr.mode = 0444;
- status = sysfs_create_file(&device->dev.kobj, &fan->fine_grain_control.attr);
- if (status)
- return status;
-
/* _FST is present if we are here */
sysfs_attr_init(&fan->fst_speed.attr);
fan->fst_speed.show = show_fan_speed;
@@ -92,7 +83,19 @@ int acpi_fan_create_attributes(struct acpi_device *device)
fan->fst_speed.attr.mode = 0444;
status = sysfs_create_file(&device->dev.kobj, &fan->fst_speed.attr);
if (status)
- goto rem_fine_grain_attr;
+ return status;
+
+ if (!fan->acpi4)
+ return 0;
+
+ sysfs_attr_init(&fan->fine_grain_control.attr);
+ fan->fine_grain_control.show = show_fine_grain_control;
+ fan->fine_grain_control.store = NULL;
+ fan->fine_grain_control.attr.name = "fine_grain_control";
+ fan->fine_grain_control.attr.mode = 0444;
+ status = sysfs_create_file(&device->dev.kobj, &fan->fine_grain_control.attr);
+ if (status)
+ goto rem_fst_attr;
for (i = 0; i < fan->fps_count; ++i) {
struct acpi_fan_fps *fps = &fan->fps[i];
@@ -109,18 +112,18 @@ int acpi_fan_create_attributes(struct acpi_device *device)
for (j = 0; j < i; ++j)
sysfs_remove_file(&device->dev.kobj, &fan->fps[j].dev_attr.attr);
- goto rem_fst_attr;
+ goto rem_fine_grain_attr;
}
}
return 0;
-rem_fst_attr:
- sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
-
rem_fine_grain_attr:
sysfs_remove_file(&device->dev.kobj, &fan->fine_grain_control.attr);
+rem_fst_attr:
+ sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
+
return status;
}
@@ -129,9 +132,13 @@ void acpi_fan_delete_attributes(struct acpi_device *device)
struct acpi_fan *fan = acpi_driver_data(device);
int i;
+ sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
+
+ if (!fan->acpi4)
+ return;
+
for (i = 0; i < fan->fps_count; ++i)
sysfs_remove_file(&device->dev.kobj, &fan->fps[i].dev_attr.attr);
- sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
sysfs_remove_file(&device->dev.kobj, &fan->fine_grain_control.attr);
}