The xdl_prepare_env() function may initialise an xdlclassifier_t
data structure via xdl_init_classifier(), which allocates memory
to several fields, for example 'rchash', 'rcrecs' and 'ncha'.
If this function later exits due to the failure of xdl_optimize_ctxs(),
then this xdlclassifier_t structure, and the memory allocated to it,
is not cleaned up.

In order to fix the memory leak, insert a call to xdl_free_classifier()
before returning.

Signed-off-by: Ramsay Jones <[email protected]>
---
 xdiff/xprepare.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xdiff/xprepare.c b/xdiff/xprepare.c
index 5ffcf99..13b55ab 100644
--- a/xdiff/xprepare.c
+++ b/xdiff/xprepare.c
@@ -301,6 +301,7 @@ int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t 
const *xpp,
 
                xdl_free_ctx(&xe->xdf2);
                xdl_free_ctx(&xe->xdf1);
+               xdl_free_classifier(&cf);
                return -1;
        }
 
-- 
2.7.0
--
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