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-rw-r--r--drivers/xen/events.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index ed3420d..c21066f 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -649,19 +649,16 @@ out:
static int find_unbound_pirq(int type)
{
- int rc, i;
+ int rc;
struct physdev_get_free_pirq op_get_free_pirq;
- op_get_free_pirq.type = type;
+ op_get_free_pirq.type = type;
rc = HYPERVISOR_physdev_op(PHYSDEVOP_get_free_pirq, &op_get_free_pirq);
- if (!rc)
- return op_get_free_pirq.pirq;
- for (i = 0; i < nr_irqs; i++) {
- if (pirq_to_irq[i] < 0)
- return i;
- }
- return -1;
+ WARN_ONCE(rc == -ENOSYS,
+ "hypervisor does not support the PHYSDEVOP_get_free_pirq interface\n");
+
+ return rc ? -1 : op_get_free_pirq.pirq;
}
int xen_allocate_pirq_msi(char *name, int *pirq, int alloc_pirq)