lkml.org 
[lkml]   [2007]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[PATCH 12/12] usb : Use mutex instead of semaphore in driver core
    Signed-off-by: Dave Young <hidave.darkstar@gmail.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);


    \
     
     \ /
      Last update: 2007-12-29 02:19    [W:0.021 / U:88.600 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site