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From: Sepherosa Ziehau <sephe@FreeBSD.org>
Date: Tue, 24 May 2016 07:07:11 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r300576 - head/sys/dev/hyperv/vmbus
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Author: sephe
Date: Tue May 24 07:07:11 2016
New Revision: 300576
URL: https://svnweb.freebsd.org/changeset/base/300576

Log:
  hyperv/vmbus: Free message taskqueue during interrupt teardown
  
  MFC after:	1 week
  Sponsored by:	Microsoft OSTC
  Differential Revision:	https://reviews.freebsd.org/D6506

Modified:
  head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c

Modified: head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c	Tue May 24 07:06:04 2016	(r300575)
+++ head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c	Tue May 24 07:07:11 2016	(r300576)
@@ -431,6 +431,12 @@ vmbus_intr_teardown(struct vmbus_softc *
 			taskqueue_free(hv_vmbus_g_context.hv_event_queue[cpu]);
 			hv_vmbus_g_context.hv_event_queue[cpu] = NULL;
 		}
+		if (hv_vmbus_g_context.hv_msg_tq[cpu] != NULL) {
+			taskqueue_drain(hv_vmbus_g_context.hv_msg_tq[cpu],
+			    &hv_vmbus_g_context.hv_msg_task[cpu]);
+			taskqueue_free(hv_vmbus_g_context.hv_msg_tq[cpu]);
+			hv_vmbus_g_context.hv_msg_tq[cpu] = NULL;
+		}
 	}
 	if (sc->vmbus_idtvec >= 0) {
 		lapic_ipi_free(sc->vmbus_idtvec);