# HG changeset patch # User john.levon(a)sun.com # Date 1231958879 28800 # Node ID 46dc909bda5b20d11f08d1516f21c05f27b6648f # Parent 1fca4b0dd4c6ab3c0030b4986de6fe5cb7c94631 Fix ref-counting for Xen driver event registration Signed-off-by: John Levon <john.levon(a)sun.com&gt; diff --git a/src/xen_unified.c b/src/xen_unified.c --- a/src/xen_unified.c +++ b/src/xen_unified.c @@ -1359,15 +1359,21 @@ xenUnifiedDomainEventRegister (virConnec void *opaque, void (*freefunc)(void *)) { + int ret; + GET_PRIVATE (conn); if (priv->xsWatch == -1) { xenUnifiedError (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__); return -1; } - conn->refs++; - return virDomainEventCallbackListAdd(conn, priv->domainEventCallbacks, - callback, opaque, freefunc); + ret = virDomainEventCallbackListAdd(conn, priv->domainEventCallbacks, + callback, opaque, freefunc); + + if (ret == 0) + conn->refs++; + + return (ret); } static int @@ -1382,8 +1388,10 @@ xenUnifiedDomainEventDeregister (virConn } ret = virDomainEventCallbackListRemove(conn, priv->domainEventCallbacks, - callback); - virUnrefConnect(conn); + callback); + + if (ret == 0) + virUnrefConnect(conn); return ret; }