xen: events: do not leak IRQ from xen_allocate_pirq_msi when no pirq available.
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>
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 89987a7..bce3035 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -676,8 +676,11 @@
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,