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[Xen-devel] [PATCH] remus: libcheckpoint - initialize unused callback fields to NULL

# HG changeset patch
# User Shriram Rajagopalan <rshriram@xxxxxxxxx>
# Date 1328838305 28800
# Node ID ae36ea00a09cebdc5a0e08cb28d877dcfc077485
# Parent  7cbe8d029c59d5ff44bafe8065fef07b6cd0126b
remus: libcheckpoint - initialize unused callback fields to NULL

Add a memset to the save_callbacks struct instance in libcheckpoint's
initialization code. New additions to the callback struct will not
need to add an explicit initialization (to NULL), to maintain
compatibility with older xend/remus based invocation of xc_domain_save.

Signed-off-by: Shriram Rajagopalan <rshriram@xxxxxxxxx>

diff --git a/tools/python/xen/lowlevel/checkpoint/checkpoint.c 
--- a/tools/python/xen/lowlevel/checkpoint/checkpoint.c
+++ b/tools/python/xen/lowlevel/checkpoint/checkpoint.c
@@ -155,6 +155,7 @@ static PyObject* pycheckpoint_start(PyOb
   } else
     self->checkpoint_cb = NULL;
+  memset(&callbacks, 0, sizeof(callbacks));
   callbacks.suspend = suspend_trampoline;
   callbacks.postcopy = postcopy_trampoline;
   callbacks.checkpoint = checkpoint_trampoline;

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