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- add null check on devices->ioapic->untrigger_irq, suggested by

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William Lee Irwin III <wli@holomorphy.com>
This commit is contained in:
Bryce Denney 2002-03-06 21:52:16 +00:00
parent b385550233
commit 4a976dcb0a
1 changed files with 3 additions and 2 deletions
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5
bochs/iodev/pic.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: pic.cc,v 1.22 2002-02-11 08:50:28 vruppert Exp $
// $Id: pic.cc,v 1.23 2002-03-06 21:52:16 bdenney Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -527,7 +527,8 @@ bx_pic_c::lower_irq(unsigned irq_no)
{
#if BX_SUPPORT_APIC
// forward this function call to the ioapic too
BX_PIC_THIS devices->ioapic->untrigger_irq (irq_no, -1);
if ((BX_PIC_THIS devices) && (BX_PIC_THIS devices->ioapic))
BX_PIC_THIS devices->ioapic->untrigger_irq (irq_no, -1);
#endif
if ((irq_no <= 7) && (BX_PIC_THIS s.master_pic.IRQ_line[irq_no])) {