[libvirt] [PATCH 1/2] Remove watches before calling REMOTE_PROC_CLOSE
From: Jiri Denemark <jdenemar(a)redhat.com>
First calling REMOTE_PROC_CLOSE and then removing watches might lead to
a hang as HANGUP event can be triggered before the watches are actually
removed but after virConnectPtr is already freed. As a result of that
remoteDomainEventFired() would try to lock uninitialized mutex, which
would hang for ever.
---
src/remote/remote_driver.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index e4a68ad..990bfce 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -1418,11 +1418,6 @@ verify_certificate (virConnectPtr conn ATTRIBUTE_UNUSED,
static int
doRemoteClose (virConnectPtr conn, struct private_data *priv)
{
- if (call (conn, priv, 0, REMOTE_PROC_CLOSE,
- (xdrproc_t) xdr_void, (char *) NULL,
- (xdrproc_t) xdr_void, (char *) NULL) == -1)
- return -1;
-
if (priv->eventFlushTimer >= 0) {
/* Remove timeout */
virEventRemoveTimeout(priv->eventFlushTimer);
@@ -1431,6 +1426,11 @@ doRemoteClose (virConnectPtr conn, struct private_data *priv)
priv->watch = -1;
}
+ if (call (conn, priv, 0, REMOTE_PROC_CLOSE,
+ (xdrproc_t) xdr_void, (char *) NULL,
+ (xdrproc_t) xdr_void, (char *) NULL) == -1)
+ return -1;
+
/* Close socket. */
if (priv->uses_tls && priv->session) {
gnutls_bye (priv->session, GNUTLS_SHUT_RDWR);
--
1.7.1