WdfSpinLockRelease function (wdfsync.h)

The WdfSpinLockRelease method releases a specified spin lock.

Syntax

void WdfSpinLockRelease(
  WDFSPINLOCK SpinLock
);

Parameters

SpinLock

A handle to a framework spin-lock object, obtained by a previous call to WdfSpinLockCreate.

Return value

None

Remarks

A bug check occurs if the driver supplies an invalid object handle.

The WdfSpinLockRelease method releases the spin lock that a driver obtained by previously calling WdfSpinLockAcquire. WdfSpinLockRelease also restores the driver's IRQL to the value that it had before the driver called WdfSpinLockAcquire.

For more information about spin locks, see Using Framework Locks.

Requirements

Requirement	Value
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfsync.h (include Wdf.h)
Library	Wdf01000.sys (KMDF); WUDFx02000.dll (UMDF)
IRQL	DISPATCH_LEVEL
DDI compliance rules	DriverCreate(kmdf), KmdfIrql(kmdf), KmdfIrql2(kmdf), KmdfIrqlExplicit(kmdf), ReqSendWhileSpinlock(kmdf), WdfSpinlock(kmdf), WdfSpinlockRelease(kmdf)

See also

WdfSpinLockCreate

WdfSpinLockAcquire

WdfSpinlock rule (KMDF)

WdfSpinLockRelease rule (KMDF)