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Message-ID: <20071229012021.GM2883@darkstar.te-china.tietoenator.com> Date: Sat, 29 Dec 2007 09:20:21 +0800 From: Dave Young <hidave.darkstar@...il.com> To: gregkh@...e.de Cc: linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org Subject: [PATCH 12/12] usb : Use mutex instead of semaphore in driver core Signed-off-by: Dave Young <hidave.darkstar@...il.com> --- 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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