int result = 0;
struct seq_file *m = file->private_data;
struct acpi_device *device = m->private;
- char state_string[12] = { '\0' };
+ char state_string[3] = { '\0' };
if (count > sizeof(state_string) - 1)
return -EINVAL;
return -EFAULT;
state_string[count] = '\0';
+ if ((state_string[0] < '0') || (state_string[0] > '3'))
+ return -EINVAL;
+ if (state_string[1] == '\n')
+ state_string[1] = '\0';
+ if (state_string[1] != '\0')
+ return -EINVAL;
result = acpi_bus_set_power(device->handle,
simple_strtoul(state_string, NULL, 0));
goto end;
}
- printk(KERN_INFO PREFIX
- "%s is registered as cooling_device%d\n",
- device->dev.bus_id, cdev->id);
+ dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id);
acpi_driver_data(device) = cdev;
result = sysfs_create_link(&device->dev.kobj,
&cdev->device.kobj,
"thermal_cooling");
if (result)
- printk(KERN_ERR PREFIX "Create sysfs link\n");
+ dev_err(&device->dev, "Failed to create sysfs link "
+ "'thermal_cooling'\n");
result = sysfs_create_link(&cdev->device.kobj,
&device->dev.kobj,
"device");
if (result)
- printk(KERN_ERR PREFIX "Create sysfs link\n");
+ dev_err(&device->dev, "Failed to create sysfs link "
+ "'device'\n");
result = acpi_fan_add_fs(device);
if (result)