[PATCH v2 7/7] unpack-trees: free cache_entry array members for merges

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The merge functions duplicate entries as needed and they don't free
them.  Release them in unpack_nondirectories, the same function
where they were allocated, after we're done.

As suggested by Felipe, use the same loop style (zero-based for loop)
for freeing as for allocating.

Improved-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
Signed-off-by: René Scharfe <rene.scharfe@xxxxxxxxxxxxxx>
---
 unpack-trees.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/unpack-trees.c b/unpack-trees.c
index 2dbc05d..57b4074 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -600,9 +600,16 @@ static int unpack_nondirectories(int n, unsigned long mask,
 		src[i + o->merge] = create_ce_entry(info, names + i, stage);
 	}
 
-	if (o->merge)
-		return call_unpack_fn((const struct cache_entry * const *)src,
-				      o);
+	if (o->merge) {
+		int rc = call_unpack_fn((const struct cache_entry * const *)src,
+					o);
+		for (i = 0; i < n; i++) {
+			struct cache_entry *ce = src[i + o->merge];
+			if (ce != o->df_conflict_entry)
+				free(ce);
+		}
+		return rc;
+	}
 
 	for (i = 0; i < n; i++)
 		if (src[i] && src[i] != o->df_conflict_entry)
-- 
1.8.3

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