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xen: events: do not leak IRQ from xen_allocate_pirq_msi when no pirq available.

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Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: xen-devel@lists.xensource.com
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 2011-02-18 16:43:27 +00:00 committed by Konrad Rzeszutek Wilk
parent 260a7d4cfd
commit ae1635b05f
1 changed files with 4 additions and 1 deletions
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5
drivers/xen/events.c
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@ -676,8 +676,11 @@ void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc)
if (alloc & XEN_ALLOC_PIRQ) {
*pirq = find_unbound_pirq(MAP_PIRQ_TYPE_MSI);
if (*pirq == -1)
if (*pirq == -1) {
xen_free_irq(*irq);
*irq = -1;
goto out;
}
}
set_irq_chip_and_handler_name(*irq, &xen_pirq_chip,