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From: Kip Macy <kmacy@FreeBSD.org>
Date: Wed, 11 Nov 2009 01:10:17 +0000 (UTC)
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Subject: svn commit: r199163 - user/kmacy/releng_7_2_xen/sys/xen/evtchn
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Author: kmacy
Date: Wed Nov 11 01:10:17 2009
New Revision: 199163
URL: http://svn.freebsd.org/changeset/base/199163

Log:
  don't hold spin lock across free

Modified:
  user/kmacy/releng_7_2_xen/sys/xen/evtchn/evtchn_dev.c

Modified: user/kmacy/releng_7_2_xen/sys/xen/evtchn/evtchn_dev.c
==============================================================================
--- user/kmacy/releng_7_2_xen/sys/xen/evtchn/evtchn_dev.c	Wed Nov 11 00:48:53 2009	(r199162)
+++ user/kmacy/releng_7_2_xen/sys/xen/evtchn/evtchn_dev.c	Wed Nov 11 01:10:17 2009	(r199163)
@@ -304,11 +304,11 @@ evtchn_close(struct cdev *dev, int flag,
 {
 	int i;
 
-	mtx_lock_spin(&lock);
 	if (ring != NULL) {
 		free(ring, M_DEVBUF);
 		ring = NULL;
 	}
+	mtx_lock_spin(&lock);
 	for ( i = 0; i < NR_EVENT_CHANNELS; i++ )
 		if ( synch_test_and_clear_bit(i, &bound_ports[0]) )
 			mask_evtchn(i);