diff options
Diffstat (limited to 'c/src/exec/rtems')
| -rw-r--r-- | c/src/exec/rtems/src/intr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/c/src/exec/rtems/src/intr.c b/c/src/exec/rtems/src/intr.c index 754a9d298f..d446515c72 100644 --- a/c/src/exec/rtems/src/intr.c +++ b/c/src/exec/rtems/src/intr.c @@ -58,6 +58,9 @@ rtems_status_code rtems_interrupt_catch( if ( !_ISR_Is_valid_user_handler( (void *) new_isr_handler ) ) return RTEMS_INVALID_ADDRESS; + if ( !_ISR_Is_valid_user_handler( (void *) old_isr_handler ) ) + return RTEMS_INVALID_ADDRESS; + _ISR_Install_vector( vector, (proc_ptr)new_isr_handler, (proc_ptr *)old_isr_handler ); |