Merge pull request ARMmbed#1605 from ARMmbed/fhss_ut_valgrind_fix

FHSS unit tests: fixed uninitialized varnings

Author: Jarkko Paso

test/nanostack/unittest/service_libs/fhss/test_fhss.c

@@ -150,6 +150,7 @@ bool test_fhss_enable()
     fhss_ws_configuration_t fhss_configuration;
     fhss_timer_t fhss_timer;
     fhss_statistics_t fhss_statistics;
+    memset(&fhss_configuration, 0, sizeof(fhss_ws_configuration_t));
 
     test_set_platform_api(&fhss_timer);
 
@@ -598,6 +599,7 @@ bool test_fhss_beacon_tasklet_func()
     fhss_ws_configuration_t fhss_configuration;
     fhss_timer_t fhss_timer;
     fhss_statistics_t fhss_statistics;
+    memset(&fhss_configuration, 0, sizeof(fhss_ws_configuration_t));
     // Create tasklet
     test_set_platform_api(&fhss_timer);
     channel_list_stub.uint8_value = 1;

test/nanostack/unittest/stub/fhss_common_stub.c

@@ -100,6 +100,7 @@ void fhss_trig_event(fhss_structure_t *fhss_structure, uint8_t event_type)
 
 int fhss_get_parent_address(fhss_structure_t *fhss_structure, uint8_t *p_addr)
 {
+    memset(p_addr, 0, 8);
     return fhss_common_stub.int_value;
 }