diff options
Diffstat (limited to 'cpukit')
| -rw-r--r-- | cpukit/score/include/rtems/score/freechain.h | 3 | ||||
| -rw-r--r-- | cpukit/score/src/freechain.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/cpukit/score/include/rtems/score/freechain.h b/cpukit/score/include/rtems/score/freechain.h index 7fa580a4e1..1540c0e2a1 100644 --- a/cpukit/score/include/rtems/score/freechain.h +++ b/cpukit/score/include/rtems/score/freechain.h @@ -93,7 +93,8 @@ void *_Freechain_Get( * @brief Puts a node back onto the freechain. * * @param[in] freechain The freechain control. - * @param[in] node The node to put back. + * @param[in] node The node to put back. The node may be @c NULL, in this case + * the function does nothing. */ void _Freechain_Put( Freechain_Control *freechain, diff --git a/cpukit/score/src/freechain.c b/cpukit/score/src/freechain.c index 84b4c63461..301e9b28b0 100644 --- a/cpukit/score/src/freechain.c +++ b/cpukit/score/src/freechain.c @@ -74,5 +74,7 @@ void *_Freechain_Get( void _Freechain_Put( Freechain_Control *freechain, void *node ) { - _Chain_Prepend_unprotected( &freechain->Free, node ); + if ( node != NULL ) { + _Chain_Prepend_unprotected( &freechain->Free, node ); + } } |