Add 'exit' label and variable initialization to relevant test suite functions
diff --git a/tests/suites/test_suite_des.function b/tests/suites/test_suite_des.function
index 0231757..4b5d53d 100644
--- a/tests/suites/test_suite_des.function
+++ b/tests/suites/test_suite_des.function
@@ -45,6 +45,7 @@
 
     TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
 
+exit:
     des_free( &ctx );
 }
 /* END_CASE */
@@ -74,6 +75,7 @@
 
     TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
 
+exit:
     des_free( &ctx );
 }
 /* END_CASE */
@@ -110,6 +112,7 @@
         TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
     }
 
+exit:
     des_free( &ctx );
 }
 /* END_CASE */
@@ -146,6 +149,7 @@
         TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
     }
 
+exit:
     des_free( &ctx );
 }
 /* END_CASE */
@@ -181,6 +185,7 @@
 
     TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
 
+exit:
     des3_free( &ctx );
 }
 /* END_CASE */
@@ -216,6 +221,7 @@
 
     TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
 
+exit:
     des3_free( &ctx );
 }
 /* END_CASE */
@@ -260,6 +266,7 @@
         TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
     }
 
+exit:
     des3_free( &ctx );
 }
 /* END_CASE */
@@ -304,6 +311,7 @@
         TEST_ASSERT( strcasecmp( (char *) dst_str, hex_dst_string ) == 0 );
     }
 
+exit:
     des3_free( &ctx );
 }
 /* END_CASE */