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xen: events: do not free legacy IRQs

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c514d00c8057 "xen: events: add xen_allocate_irq_{dynamic, gsi} and
xen_free_irq" correctly avoids reallocating legacy IRQs (which are
managed by the arch core) but erroneously did not prevent them being
freed.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Ian Campbell 2011-02-03 09:49:35 +00:00 committed by Konrad Rzeszutek Wilk
parent 89911501f3
commit 7214610475
1 changed files with 4 additions and 0 deletions
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4
drivers/xen/events.c
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@ -434,6 +434,10 @@ static int xen_allocate_irq_gsi(unsigned gsi)
static void xen_free_irq(unsigned irq)
{
/* Legacy IRQ descriptors are managed by the arch. */
if (irq < NR_IRQS_LEGACY)
return;
irq_free_desc(irq);
}