Patchwork [V12,06/27] pc: initialize ioapic before use.

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Submitter Isaku Yamahata
Date Jan. 6, 2010, 2:39 a.m.
Message ID <1262745591-28697-7-git-send-email-yamahata@valinux.co.jp>
Download mbox | patch
Permalink /patch/42268/
State New
Headers show

Comments

Isaku Yamahata - Jan. 6, 2010, 2:39 a.m.
The changeset of 2c8d9340203c7f19265fd4cb2341f568217a3af6
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>
---
 hw/pc.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

Patch

diff --git a/hw/pc.c b/hw/pc.c
index 83f8dd0..fbacc1e 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1112,6 +1112,9 @@  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) {
@@ -1155,9 +1158,6 @@  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) {