diff options
Diffstat (limited to 'cpukit/rtems/src/dpmeminternal2external.c')
| -rw-r--r-- | cpukit/rtems/src/dpmeminternal2external.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cpukit/rtems/src/dpmeminternal2external.c b/cpukit/rtems/src/dpmeminternal2external.c index 863b9dfa00..defe8375f6 100644 --- a/cpukit/rtems/src/dpmeminternal2external.c +++ b/cpukit/rtems/src/dpmeminternal2external.c @@ -49,6 +49,9 @@ rtems_status_code rtems_port_internal_to_external( Objects_Locations location; uint32_t ending; + if ( !external ) + return RTEMS_INVALID_ADDRESS; + the_port = _Dual_ported_memory_Get( id, &location ); switch ( location ) { case OBJECTS_REMOTE: /* this error cannot be returned */ |