Revision ca0bf64d99f6e3f6e2fe2585e52a0ac57354beac authored by Thadeu Lima de Souza Cascardo on 02 February 2010, 21:44:17 UTC, committed by Linus Torvalds on 03 February 2010, 02:11:23 UTC
This is the counterpart to cba767175becadc5c4016cceb7bfdd2c7fe722f4 ("pktcdvd: remove broken dev_t export of class devices"). Device is not registered using dev_t, so it should not be destroyed using device_destroy which looks up the device by dev_t. This will fail and adding the device again will fail with the "duplicate name" error. This is fixed using device_unregister instead of device_destroy. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Peter Osterlund <petero2@telia.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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mutex.h
/*
* Mutexes: blocking mutual exclusion locks
*
* started by Ingo Molnar:
*
* Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
*
* This file contains mutex debugging related internal prototypes, for the
* !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
*/
#define spin_lock_mutex(lock, flags) \
do { spin_lock(lock); (void)(flags); } while (0)
#define spin_unlock_mutex(lock, flags) \
do { spin_unlock(lock); (void)(flags); } while (0)
#define mutex_remove_waiter(lock, waiter, ti) \
__list_del((waiter)->list.prev, (waiter)->list.next)
#ifdef CONFIG_SMP
static inline void mutex_set_owner(struct mutex *lock)
{
lock->owner = current_thread_info();
}
static inline void mutex_clear_owner(struct mutex *lock)
{
lock->owner = NULL;
}
#else
static inline void mutex_set_owner(struct mutex *lock)
{
}
static inline void mutex_clear_owner(struct mutex *lock)
{
}
#endif
#define debug_mutex_wake_waiter(lock, waiter) do { } while (0)
#define debug_mutex_free_waiter(waiter) do { } while (0)
#define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0)
#define debug_mutex_unlock(lock) do { } while (0)
#define debug_mutex_init(lock, name, key) do { } while (0)
static inline void
debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
{
}
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