object validation: free some memleaks

src/odb_loose.c

@@ -205,6 +205,11 @@ static int start_inflate(z_stream *s, git_buf *obj, void *out, size_t len)
 	return inflate(s, 0);
 }
 
+static void abort_inflate(z_stream *s)
+{
+	inflateEnd(s);
+}
+
 static int finish_inflate(z_stream *s)
 {
 	int status = Z_OK;
@@ -367,6 +372,7 @@ static int inflate_disk_obj(git_rawobj *out, git_buf *obj)
 		(used = get_object_header(&hdr, head)) == 0 ||
 		!git_object_typeisloose(hdr.type))
 	{
+		abort_inflate(&zs);
 		giterr_set(GITERR_ODB, "failed to inflate disk object");
 		return -1;
 	}

tests/object/lookup.c

@@ -116,6 +116,7 @@ void test_object_lookup__lookup_object_with_wrong_hash_returns_error(void)
 	cl_git_pass(git_object_lookup(&object, g_repo, &oid, GIT_OBJ_COMMIT));
 	cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_STRICT_HASH_VERIFICATION, 1));
 
+	git_object_free(object);
 	git_buf_free(&oldpath);
 	git_buf_free(&newpath);
 }