MFSH_UNLOCK - Unlock a segment

Purpose   

Unlock a segment which was previous locked by calling MFSH_LOCK. 

Calling Sequence   

int far pascal MFSH_SEGREALLOC(ulHandle)

unsigned long ulHandle;

Where   

ulHandle contains the handle returned from MFSH_LOCK of the segment to 
unlock . 
  

Returns   

If no error is detected, a zero error code is returned. If an error is 
detected, the following error code is returned: 

oERROR_PROTECTION_VIOLATION 

the supplied address is invalid. 
  

Remarks   

This helper is for use by a mini-FSD with an imbedded device driver. It is 
the same as the standard device driver helper UNLOCK.