1 files changed, 13 insertions, 9 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bb5ed059114a..5259d502add6 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -358,32 +358,36 @@ static struct output_properties acpi_output_properties = {
 
 
 /* thermal cooling device callbacks */
-static int video_get_max_state(struct thermal_cooling_device *cdev, char *buf)
+static int video_get_max_state(struct thermal_cooling_device *cdev, unsigned
+                               long *state)
 {
         struct acpi_device *device = cdev->devdata;
         struct acpi_video_device *video = acpi_driver_data(device);
 
-        return sprintf(buf, "%d\n", video->brightness->count - 3);
+        *state = video->brightness->count - 3;
+        return 0;
 }
 
-static int video_get_cur_state(struct thermal_cooling_device *cdev, char *buf)
+static int video_get_cur_state(struct thermal_cooling_device *cdev, unsigned
+                               long *state)
 {
         struct acpi_device *device = cdev->devdata;
         struct acpi_video_device *video = acpi_driver_data(device);
         unsigned long long level;
-        int state;
+        int offset;
 
         acpi_video_device_lcd_get_level_current(video, &level);
-        for (state = 2; state < video->brightness->count; state++)
-                if (level == video->brightness->levels[state])
-                        return sprintf(buf, "%d\n",
-                                       video->brightness->count - state - 1);
+        for (offset = 2; offset < video->brightness->count; offset++)
+                if (level == video->brightness->levels[offset]) {
+                        *state = video->brightness->count - offset - 1;
+                        return 0;
+                }
 
         return -EINVAL;
 }
 
 static int
-video_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state)
+video_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
 {
         struct acpi_device *device = cdev->devdata;
         struct acpi_video_device *video = acpi_driver_data(device);