Add 'exit' label and variable initialization to relevant test suite functions
diff --git a/tests/suites/test_suite_ecdh.function b/tests/suites/test_suite_ecdh.function
index 4ef8c1d..c84d2b1 100644
--- a/tests/suites/test_suite_ecdh.function
+++ b/tests/suites/test_suite_ecdh.function
@@ -34,6 +34,7 @@
 
     TEST_ASSERT( mpi_cmp_mpi( &zA, &zB ) == 0 );
 
+exit:
     ecp_group_free( &grp );
     ecp_point_free( &qA ); ecp_point_free( &qB );
     mpi_free( &dA ); mpi_free( &dB );
@@ -114,6 +115,7 @@
     TEST_ASSERT( ecdh_compute_shared( &grp, &zB, &qA, &dB, NULL, NULL ) == 0 );
     TEST_ASSERT( mpi_cmp_mpi( &zB, &check ) == 0 );
 
+exit:
     ecp_group_free( &grp );
     ecp_point_free( &qA ); ecp_point_free( &qB );
     mpi_free( &dA ); mpi_free( &dB );
@@ -151,6 +153,7 @@
     TEST_ASSERT( ecdh_calc_secret( &cli, &len, buf, 1000, NULL, NULL ) == 0 );
     TEST_ASSERT( mpi_cmp_mpi( &srv.z, &cli.z ) == 0 );
 
+exit:
     ecdh_free( &srv );
     ecdh_free( &cli );
 }