From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Thu, 7 May 2015 00:47:41 +0000 (-0700)
Subject: Drivers: hv: vmbus: kill tasklets on module unload
X-Git-Tag: v4.1.12-92~196^2~45
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8a0309a7550f3dff22f33f0a4319c8108e47128d;p=users%2Fjedix%2Flinux-maple.git

Drivers: hv: vmbus: kill tasklets on module unload

Explicitly kill tasklets we create on module unload.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1959a28e2671004c1e9c30ccd2914b868f100742)

Orabug: 21886720
Signed-off-by: Jason Luo <zhangqing.luo@oracle.com>
---

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index ebe4d338fd77..8e3e9d5a352a 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1098,11 +1098,14 @@ static void __exit vmbus_exit(void)
 	hv_synic_clockevents_cleanup();
 	vmbus_disconnect();
 	hv_remove_vmbus_irq();
+	tasklet_kill(&msg_dpc);
 	vmbus_free_channels();
 	bus_unregister(&hv_bus);
 	hv_cleanup();
-	for_each_online_cpu(cpu)
+	for_each_online_cpu(cpu) {
+		tasklet_kill(hv_context.event_dpc[cpu]);
 		smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);
+	}
 	acpi_bus_unregister_driver(&vmbus_acpi_driver);
 	hv_cpu_hotplug_quirk(false);
 }