[PATCH 12/12] usb : Use mutex instead of semaphore in driver core

[Dave Young]

Signed-off-by: Dave Young <hidave.darkstar@xxxxxxxxx> 

---
include/linux/usb.h |    6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff -upr linux/include/linux/usb.h linux.new/include/linux/usb.h
--- linux/include/linux/usb.h	2007-12-28 10:50:31.000000000 +0800
+++ linux.new/include/linux/usb.h	2007-12-28 10:52:31.000000000 +0800
@@ -441,9 +441,9 @@ extern struct usb_device *usb_get_dev(st
 extern void usb_put_dev(struct usb_device *dev);
 
 /* USB device locking */
-#define usb_lock_device(udev)		down(&(udev)->dev.sem)
-#define usb_unlock_device(udev)		up(&(udev)->dev.sem)
-#define usb_trylock_device(udev)	down_trylock(&(udev)->dev.sem)
+#define usb_lock_device(udev)		mutex_lock(&(udev)->dev.mutex)
+#define usb_unlock_device(udev)		mutex_unlock(&(udev)->dev.mutex)
+#define usb_trylock_device(udev)	mutex_trylock(&(udev)->dev.mutex)
 extern int usb_lock_device_for_reset(struct usb_device *udev,
 				     const struct usb_interface *iface);
 
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