DevHlp FreeSpinLock

Free a subsystem spinlock.

This function frees a subsystem spinlock.

Syntax

DevHlp_FreeSpinLock(spl)

Parameters

spl (HSpinLock) - input

Spinlock handle.

Return code

Exit

Example Code

Assembly language

    ;       dh_FreeSpinLock - Free a subsystem spinlock ;
    ;       This routine frees a subsystem spinlock.
    ;
    ;       ENTRY:  AX:BX = spinlock handle
    ;
    ;       EXIT:   None
    ;
    ;       USES:   Flags
    ;

      hSpinLock       dd      ?            ; 16:16

      MOV     AX,hSpinLockHighWord         ; high word of handle
      MOV     BX,hSpinLockLowWord          ; low word of handle
      MOV     DL,DevHlp_FreeSpinLock       ; 7Ah
      CALL    DevHlp
      JC      Error