void
AcpiUtReleaseOwnerId (
ACPI_OWNER_ID *OwnerIdPtr)
{
ACPI_OWNER_ID OwnerId = *OwnerIdPtr;
ACPI_STATUS Status;
UINT32 Index;
UINT32 Bit;
ACPI_FUNCTION_TRACE_U32 (UtReleaseOwnerId, OwnerId);
/* Always clear the input OwnerId (zero is an invalid ID) */
*OwnerIdPtr = 0;
/* Zero is not a valid OwnerID */
if (OwnerId == 0)
{
ACPI_ERROR ((AE_INFO, "Invalid OwnerId: 0x%2.2X", OwnerId));
return_VOID;
}
/* Mutex for the global ID mask */
Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return_VOID;
}
/* Normalize the ID to zero */
OwnerId--;
/* Decode ID to index/offset pair */
Index = ACPI_DIV_32 (OwnerId);
Bit = 1 << ACPI_MOD_32 (OwnerId);
/* Free the owner ID only if it is valid */
if (AcpiGbl_OwnerIdMask[Index] & Bit)
{
AcpiGbl_OwnerIdMask[Index] ^= Bit;
}
else
{
ACPI_ERROR ((AE_INFO,
"Release of non-allocated OwnerId: 0x%2.2X", OwnerId + 1));
}
(void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
return_VOID;
}
void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
{
acpi_owner_id owner_id = *owner_id_ptr;
acpi_status status;
u32 index;
u32 bit;
ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
/* Always clear the input owner_id (zero is an invalid ID) */
*owner_id_ptr = 0;
/* Zero is not a valid owner_ID */
if (owner_id == 0) {
ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id));
return_VOID;
}
/* Mutex for the global ID mask */
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return_VOID;
}
/* Normalize the ID to zero */
owner_id--;
/* Decode ID to index/offset pair */
index = ACPI_DIV_32(owner_id);
bit = 1 << ACPI_MOD_32(owner_id);
/* Free the owner ID only if it is valid */
if (acpi_gbl_owner_id_mask[index] & bit) {
acpi_gbl_owner_id_mask[index] ^= bit;
} else {
ACPI_ERROR((AE_INFO,
"Release of non-allocated OwnerId: 0x%2.2X",
owner_id + 1));
}
(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
return_VOID;
}
