* [PATCH]: Properly unregister legacy interrupts
@ 2008-05-14 16:00 Prarit Bhargava
0 siblings, 0 replies; only message in thread
From: Prarit Bhargava @ 2008-05-14 16:00 UTC (permalink / raw)
To: linux-ia64
acpi_unregister_gsi() should "undo" what acpi_register_gsi() does.
On systems that have legacy interrupts, acpi_unregister_gsi erroneously calls
iosapci_unregister_intr() which is wrong to do and causes a loud warning.
acpi_unregister_gsi() should just return in these cases.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 78f28d8..f66de49 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -620,6 +620,9 @@ void acpi_unregister_gsi(u32 gsi)
if (acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM)
return;
+ if (has_8259 && gsi < 16)
+ return;
+
iosapic_unregister_intr(gsi);
}
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2008-05-14 16:00 [PATCH]: Properly unregister legacy interrupts Prarit Bhargava
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