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Diffstat (limited to 'cpukit/rtems/src/taskmode.c')
| -rw-r--r-- | cpukit/rtems/src/taskmode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cpukit/rtems/src/taskmode.c b/cpukit/rtems/src/taskmode.c index e97d7e0a8c..478773681e 100644 --- a/cpukit/rtems/src/taskmode.c +++ b/cpukit/rtems/src/taskmode.c @@ -58,6 +58,9 @@ rtems_status_code rtems_task_mode( boolean needs_asr_dispatching = FALSE; rtems_mode old_mode; + if ( !previous_mode_set ) + return RTEMS_INVALID_ADDRESS; + executing = _Thread_Executing; api = executing->API_Extensions[ THREAD_API_RTEMS ]; asr = &api->Signal; |