score: PR2179: Fix initially locked PI mutex

testsuites/sptests/sp51/init.c

@@ -18,6 +18,40 @@ const char rtems_test_name[] = "SP 51";
 /* forward declarations to avoid warnings */
 rtems_task Init(rtems_task_argument argument);
 
+static void test_create_initially_locked_prio_inherit_sema(void)
+{
+  rtems_status_code   sc;
+  rtems_id            id;
+  rtems_task_priority prio_a;
+  rtems_task_priority prio_b;
+  rtems_task_priority prio_ceiling = 0;
+
+  sc = rtems_task_set_priority(RTEMS_SELF, RTEMS_CURRENT_PRIORITY, &prio_a);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  rtems_test_assert(prio_a != prio_ceiling);
+
+  sc = rtems_semaphore_create(
+    rtems_build_name( 'S', 'E', 'M', 'A' ),
+    0,
+    RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY | RTEMS_INHERIT_PRIORITY,
+    prio_ceiling,
+    &id
+  );
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  sc = rtems_task_set_priority(RTEMS_SELF, RTEMS_CURRENT_PRIORITY, &prio_b);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  rtems_test_assert(prio_a == prio_b);
+
+  sc = rtems_semaphore_release(id);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  sc = rtems_semaphore_delete(id);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
 rtems_task Init(
   rtems_task_argument argument
 )
@@ -57,6 +91,8 @@ rtems_task Init(
   fatal_directive_status(
     sc, RTEMS_NOT_OWNER_OF_RESOURCE, "rtems_semaphore_release" );
 
+  test_create_initially_locked_prio_inherit_sema();
+
   TEST_END();
   rtems_test_exit( 0 );
 }

testsuites/sptests/sp51/sp51.doc

@@ -23,3 +23,6 @@ concepts:
 
 + Ensure the when the binary semaphore lock fails to acquire the mutex,
   it is an error to release it since the lock failed.
+
++ Verify that creation of an initially locked priority inheritance mutex does
+  not change the priority of the executing thread.