The evtchn_fifo_cpu_notification() hotplug callback lacks handling of
the CPU_UP_CANCELED case. That means, if CPU_UP_PREPARE fails, the
handle of the fifo events is not dropped.
Add handling for CPU_UP_CANCELED transition to drop the fifo events
handle.
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: Boris Ostrovsky <boris.ostrov...@oracle.com>
Cc: David Vrabel <david.vra...@citrix.com>
Cc: xen-de...@lists.xenproject.org
Signed-off-by: Anna-Maria Gleixner <anna-ma...@linutronix.de>
---
drivers/xen/events/events_fifo.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/xen/events/events_fifo.c
+++ b/drivers/xen/events/events_fifo.c
@@ -432,6 +432,7 @@ static int evtchn_fifo_cpu_notification(
ret = evtchn_fifo_alloc_control_block(cpu);
break;
case CPU_DEAD:
+ case CPU_UP_CANCELED:
__evtchn_fifo_handle_events(cpu, true);
break;
default:
