xen: events: fix error checks in bind_*_to_irqhandler()

Checking 'irq < 0' doesn't work when 'irq' is unsigned.

The assigned bind_evtchn_to_irq() and bind_virq_to_irq()
return int, so using int appears appropriate.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 036343ba204e..589f0a53a604 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -912,8 +912,7 @@ int bind_evtchn_to_irqhandler(unsigned int evtchn,
                               unsigned long irqflags,
                               const char *devname, void *dev_id)
 {
-        unsigned int irq;
-        int retval;
+        int irq, retval;
 
         irq = bind_evtchn_to_irq(evtchn);
         if (irq < 0)
@@ -955,8 +954,7 @@ int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
                             irq_handler_t handler,
                             unsigned long irqflags, const char *devname, void *dev_id)
 {
-        unsigned int irq;
-        int retval;
+        int irq, retval;
 
         irq = bind_virq_to_irq(virq, cpu);
         if (irq < 0)