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pc: initialize ioapic before use.

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The changeset of 2c8d934020
prevents isa_irq_handler() from NULL refering of IsaIrqState::ioapic.
However it would be better to initialize the member before reference.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Isaku Yamahata 2010-05-14 16:29:03 +09:00 committed by Blue Swirl
parent 93d89f63e5
commit b8d6f53986
1 changed files with 3 additions and 3 deletions
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6
hw/pc.c
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@ -921,6 +921,9 @@ static void pc_init1(ram_addr_t ram_size,
i8259 = i8259_init(cpu_irq[0]);
isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
isa_irq_state->i8259 = i8259;
if (pci_enabled) {
isa_irq_state->ioapic = ioapic_init();
}
isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
if (pci_enabled) {
@ -964,9 +967,6 @@ static void pc_init1(ram_addr_t ram_size,
register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
if (pci_enabled) {
isa_irq_state->ioapic = ioapic_init();
}
pit = pit_init(0x40, isa_reserve_irq(0));
pcspk_init(pit);
if (!no_hpet) {