backlight: Fix external uses of backlight internal semaphore

[safe/jmp/linux-2.6] / drivers / usb / misc / appledisplay.c

diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 416cde5..cd2c557 100644 (file)
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -189,11 +189,9 @@ static void appledisplay_work(struct work_struct *work)
                container_of(work, struct appledisplay, work.work);
        int retval;
 
-       up(&pdata->bd->sem);
        retval = appledisplay_bl_get_brightness(pdata->bd);
        if (retval >= 0)
                pdata->bd->props->brightness = retval;
-       down(&pdata->bd->sem);
 
        /* Poll again in about 125ms if there's still a button pressed */
        if (pdata->button_pressed)
@@ -288,9 +286,7 @@ static int appledisplay_probe(struct usb_interface *iface,
        }
 
        /* Try to get brightness */
-       up(&pdata->bd->sem);
        brightness = appledisplay_bl_get_brightness(pdata->bd);
-       down(&pdata->bd->sem);
 
        if (brightness < 0) {
                retval = brightness;
@@ -299,9 +295,7 @@ static int appledisplay_probe(struct usb_interface *iface,
        }
 
        /* Set brightness in backlight device */
-       up(&pdata->bd->sem);
        pdata->bd->props->brightness = brightness;
-       down(&pdata->bd->sem);
 
        /* save our data pointer in the interface device */
        usb_set_intfdata(iface, pdata);