From 249040dc7fd391186f420fe23a9b59d357103cac Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Thu, 8 Feb 2007 22:53:55 +0000 Subject: backlight: Convert semaphore -> mutex Convert internal semaphore to a mutex Signed-off-by: Richard Purdie --- include/linux/backlight.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux/backlight.h') diff --git a/include/linux/backlight.h b/include/linux/backlight.h index d1426b852bdf..43c6d55644b5 100644 --- a/include/linux/backlight.h +++ b/include/linux/backlight.h @@ -14,8 +14,8 @@ /* Notes on locking: * - * backlight_device->sem is an internal backlight lock protecting the props - * field and no code outside the core should need to touch it. + * backlight_device->props_lock is an internal backlight lock protecting the + * props field and no code outside the core should need to touch it. * * Access to update_status() is serialised by the update_lock mutex since * most drivers seem to need this and historically get it wrong. @@ -57,7 +57,7 @@ struct backlight_device { /* This protects the 'props' field. If 'props' is NULL, the driver that registered this device has been unloaded, and if class_get_devdata() points to something in the body of that driver, it is also invalid. */ - struct semaphore sem; + struct mutex props_lock; /* If this is NULL, the backing module is unloaded */ struct backlight_properties *props; /* Serialise access to update_status method */ -- cgit v1.2.3-59-g8ed1b