x86: initialize all fields of mp_irqs[mp_irq_entries]

Commit "x86: make config_irqsrc not MPspec specific" introduced some uses
of uninitialized fields in mp_config_acpi_legacy_irqs(). I need the
following patch to get sched-devel/master to boot.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 5 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 276ec058f683..6170c6aeaf79 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1012,11 +1012,6 @@ void __init mp_config_acpi_legacy_irqs(void)
         if (ioapic < 0)
                 return;
 
-        mp_irqs[mp_irq_entries].mp_type = MP_INTSRC;
-        mp_irqs[mp_irq_entries].mp_irqflag = 0; /* Conforming */
-        mp_irqs[mp_irq_entries].mp_srcbus = MP_ISA_BUS;
-        mp_irqs[mp_irq_entries].mp_dstapic = mp_ioapics[ioapic].mp_apicid;
-
         /*
          * Use the default configuration for the IRQs 0-15.  Unless
          * overridden by (MADT) interrupt source override entries.
@@ -1044,6 +1039,10 @@ void __init mp_config_acpi_legacy_irqs(void)
                         continue;       /* IRQ already used */
                 }
 
+                mp_irqs[mp_irq_entries].mp_type = MP_INTSRC;
+                mp_irqs[mp_irq_entries].mp_irqflag = 0; /* Conforming */
+                mp_irqs[mp_irq_entries].mp_srcbus = MP_ISA_BUS;
+                mp_irqs[mp_irq_entries].mp_dstapic = mp_ioapics[ioapic].mp_apicid;
                 mp_irqs[mp_irq_entries].mp_irqtype = mp_INT;
                 mp_irqs[mp_irq_entries].mp_srcbusirq = i;       /* Identity mapped */
                 mp_irqs[mp_irq_entries].mp_dstirq = i;