[PATCH v2] xen/events: fix error code in xen_bind_pirq_msi_to_irq()

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

Return -ENOMEM if xen_irq_init() fails.  currently the code returns an
uninitialized variable or zero.

Fixes: 5dd9ad32d775 ("xen/events: drop xen_allocate_irqs_dynamic()")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
v2: Part of v1 was bogus.  Delete that bit.

 drivers/xen/events/events_base.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index f5edb9e27e3c..b8cfea7812d6 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1110,8 +1110,10 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct 
msi_desc *msidesc,
 
        for (i = 0; i < nvec; i++) {
                info = xen_irq_init(irq + i);
-               if (!info)
+               if (!info) {
+                       ret = -ENOMEM;
                        goto error_irq;
+               }
 
                irq_set_chip_and_handler_name(irq + i, &xen_pirq_chip, 
handle_edge_irq, name);
 
-- 
2.42.0