George Stark 42d64dbe4b locking/mutex: Introduce devm_mutex_init() ...

[ Upstream commit 4cd47222e435dec8e3787614924174f53fcfb5ae ]

Using of devm API leads to a certain order of releasing resources.
So all dependent resources which are not devm-wrapped should be deleted
with respect to devm-release order. Mutex is one of such objects that
often is bound to other resources and has no own devm wrapping.
Since mutex_destroy() actually does nothing in non-debug builds
frequently calling mutex_destroy() is just ignored which is safe for now
but wrong formally and can lead to a problem if mutex_destroy() will be
extended so introduce devm_mutex_init().

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: George Stark <gnstark@salutedevices.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20240411161032.609544-2-gnstark@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-07-11 12:47:04 +02:00

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irqflag-debug.c

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lock_events_list.h

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lock_events.c

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lock_events.h

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lockdep_internals.h

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lockdep_proc.c

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lockdep_states.h

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lockdep.c

lockdep: Fix block chain corruption

2023-12-03 07:32:09 +01:00

locktorture.c

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Makefile

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mcs_spinlock.h

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mutex-debug.c

locking/mutex: Introduce devm_mutex_init()

2024-07-11 12:47:04 +02:00

mutex.c

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mutex.h

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osq_lock.c

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percpu-rwsem.c

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qrwlock.c

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qspinlock_paravirt.h

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qspinlock_stat.h

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qspinlock.c

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rtmutex_api.c

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rtmutex_common.h

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rtmutex.c

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rwbase_rt.c

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rwsem.c

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semaphore.c

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spinlock_debug.c

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spinlock_rt.c

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spinlock.c

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test-ww_mutex.c

locking/ww_mutex/test: Fix potential workqueue corruption

2023-11-28 17:06:54 +00:00

ww_mutex.h

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ww_rt_mutex.c

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