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[efi] Report failures to stop the EFI timer tick event 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/56/head
Michael Brown 2016-06-20 16:08:17 +01:00
parent c9176878ef
commit 694c18addc
1 changed files with 16 additions and 2 deletions
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18
src/interface/efi/efi_timer.c
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@ -126,13 +126,27 @@ static void efi_tick_startup ( void ) {
*/
static void efi_tick_shutdown ( int booting __unused ) {
EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
EFI_STATUS efirc;
int rc;
/* Stop timer tick */
bs->SetTimer ( efi_tick_event, TimerCancel, 0 );
if ( ( efirc = bs->SetTimer ( efi_tick_event, TimerCancel, 0 ) ) != 0 ){
rc = -EEFI ( efirc );
DBGC ( colour, "EFI could not stop timer tick: %s\n",
strerror ( rc ) );
/* Self-destruct initiated */
return;
}
DBGC ( colour, "EFI timer stopped\n" );
/* Destroy timer tick event */
bs->CloseEvent ( efi_tick_event );
if ( ( efirc = bs->CloseEvent ( efi_tick_event ) ) != 0 ) {
rc = -EEFI ( efirc );
DBGC ( colour, "EFI could not destroy timer tick: %s\n",
strerror ( rc ) );
/* Probably non-fatal */
return;
}
}
/** Timer tick startup function */