// wdm.h

VOID ExReleaseFastMutexUnsafe(
  PFAST_MUTEX FastMutex
);
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Windows Driver Kit DDI reference (nf-wdm-exreleasefastmutexunsafe)

Description

The ExReleaseFastMutexUnsafe routine releases ownership of a fast mutex that was acquired by using ExAcquireFastMutexUnsafe.

Parameters

`FastMutex`

[in, out] A pointer to the fast mutex to be released.

Remarks

It is a programming error to call ExReleaseFastMutexUnsafe with a pointer to a fast mutex that was acquired by using ExAcquireFastMutex or ExTryToAcquireFastMutex.

For more information about fast mutexes, see Fast Mutexes and Guarded Mutexes.