From: Wei Liu <wei.liu2@citrix.com>
To: xen-devel@lists.xen.org
Cc: david.vrabel@citrix.com, Wei Liu <wei.liu2@citrix.com>,
ian.campbell@citrix.com, jbeulich@suse.com,
konrad.wilk@oracle.com
Subject: [PATCH V2 04/13] xen: close evtchn port if binding to irq fails
Date: Mon, 4 Feb 2013 17:23:45 +0000 [thread overview]
Message-ID: <1359998635-16866-5-git-send-email-wei.liu2@citrix.com> (raw)
In-Reply-To: <1359998635-16866-1-git-send-email-wei.liu2@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
drivers/xen/evtchn.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index b1f60a0..ef02dfa 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -269,6 +269,15 @@ static int evtchn_bind_to_user(struct per_user_data *u, int port)
u->name, (void *)(unsigned long)port);
if (rc >= 0)
rc = evtchn_make_refcounted(port);
+ else {
+ /* bind failed, should close the port now */
+ struct evtchn_close close;
+ close.port = port;
+ if (port != 0 && /* port 0 is never used */
+ HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0)
+ BUG();
+ set_port_user(port, NULL);
+ }
return rc;
}
--
1.7.10.4
next prev parent reply other threads:[~2013-02-04 17:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-04 17:23 [PATCH V2] Implement 3-level event channel in Linux Wei Liu
2013-02-04 17:23 ` [PATCH V2 01/13] xen: add KERN_DEBUG in printk Wei Liu
2013-02-04 17:23 ` [PATCH V2 02/13] xen: fix output of xen_debug_interrupt Wei Liu
2013-02-04 17:23 ` [PATCH V2 03/13] xen: fix error handling path if xen_allocate_irq_dynamic fails Wei Liu
2013-02-04 17:23 ` Wei Liu [this message]
2013-02-06 8:05 ` [PATCH V2 04/13] xen: close evtchn port if binding to irq fails Jan Beulich
2013-02-04 17:23 ` [PATCH V2 05/13] xen: sync public headers Wei Liu
2013-02-04 17:23 ` [PATCH V2 06/13] xen: introduce test_and_set_mask Wei Liu
2013-02-04 17:23 ` [PATCH V2 07/13] xen: replace raw bit ops with functions Wei Liu
2013-02-04 17:23 ` [PATCH V2 08/13] xen: generalized event channel operations Wei Liu
2013-02-04 17:23 ` [PATCH V2 09/13] xen: dynamically allocate cpu_evtchn_mask Wei Liu
2013-02-04 17:23 ` [PATCH V2 10/13] xen: implement 3-level event channel routines Wei Liu
2013-02-04 17:23 ` [PATCH V2 11/13] xen: introduce xen_event_channel_register_3level Wei Liu
2013-02-04 17:23 ` [PATCH V2 12/13] xen: introduce xen_event_channel_register_nlevel Wei Liu
2013-02-04 17:23 ` [PATCH V2 13/13] xen: register 3-level event channel Wei Liu
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