xen: events: fix xen_map_pirq_gsi error return
Fix initial value of irq so that first goto out (if pirq or gsi
arguments are too large) actually returns an error.
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 0b27080..a9c154d 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -592,7 +592,7 @@
*/
int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name)
{
- int irq = 0;
+ int irq = -1;
struct physdev_irq irq_op;
spin_lock(&irq_mapping_update_lock);