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score: Close semaphore object before flush

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This prevents use of the object after the flush on uni-processor
configurations.
This commit is contained in:
Sebastian Huber
2016-04-18 06:53:10 +02:00
parent 90f1265e5d
commit ca18cb593f
2 changed files with 38 additions and 26 deletions
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55
cpukit/rtems/src/semdelete.c
View File

@@ -48,9 +48,9 @@ rtems_status_code rtems_semaphore_delete(
attribute_set = the_semaphore->attribute_set;
#if defined(RTEMS_SMP)
if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) {
MRSP_Status mrsp_status = _MRSP_Destroy(
&the_semaphore->Core_control.mrsp
);
MRSP_Status mrsp_status;
mrsp_status = _MRSP_Can_destroy( &the_semaphore->Core_control.mrsp );
if ( mrsp_status != MRSP_SUCCESSFUL ) {
_Objects_Put( &the_semaphore->Object );
_Objects_Allocator_unlock();
@@ -58,26 +58,14 @@ rtems_status_code rtems_semaphore_delete(
}
} else
#endif
if ( !_Attributes_Is_counting_semaphore( attribute_set ) ) {
if ( _CORE_mutex_Is_locked( &the_semaphore->Core_control.mutex ) &&
!_Attributes_Is_simple_binary_semaphore( attribute_set ) ) {
_Objects_Put( &the_semaphore->Object );
_Objects_Allocator_unlock();
return RTEMS_RESOURCE_IN_USE;
}
_CORE_mutex_Flush(
&the_semaphore->Core_control.mutex,
CORE_MUTEX_WAS_DELETED,
_Semaphore_MP_Send_object_was_deleted,
id
);
_CORE_mutex_Destroy( &the_semaphore->Core_control.mutex );
} else {
_CORE_semaphore_Destroy(
&the_semaphore->Core_control.semaphore,
_Semaphore_MP_Send_object_was_deleted,
id
);
if (
!_Attributes_Is_counting_semaphore( attribute_set )
&& _CORE_mutex_Is_locked( &the_semaphore->Core_control.mutex )
&& !_Attributes_Is_simple_binary_semaphore( attribute_set )
) {
_Objects_Put( &the_semaphore->Object );
_Objects_Allocator_unlock();
return RTEMS_RESOURCE_IN_USE;
}
_Objects_Close( &_Semaphore_Information, &the_semaphore->Object );
@@ -96,6 +84,27 @@ rtems_status_code rtems_semaphore_delete(
}
#endif
#if defined(RTEMS_SMP)
if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) {
_MRSP_Destroy( &the_semaphore->Core_control.mrsp );
} else
#endif
if ( !_Attributes_Is_counting_semaphore( attribute_set ) ) {
_CORE_mutex_Flush(
&the_semaphore->Core_control.mutex,
CORE_MUTEX_WAS_DELETED,
_Semaphore_MP_Send_object_was_deleted,
id
);
_CORE_mutex_Destroy( &the_semaphore->Core_control.mutex );
} else {
_CORE_semaphore_Destroy(
&the_semaphore->Core_control.semaphore,
_Semaphore_MP_Send_object_was_deleted,
id
);
}
_Objects_Put( &the_semaphore->Object );
_Semaphore_Free( the_semaphore );
_Objects_Allocator_unlock();

9
cpukit/score/include/rtems/score/mrspimpl.h
View File

@@ -398,16 +398,19 @@ RTEMS_INLINE_ROUTINE MRSP_Status _MRSP_Release(
return MRSP_SUCCESSFUL;
}
RTEMS_INLINE_ROUTINE MRSP_Status _MRSP_Destroy( MRSP_Control *mrsp )
RTEMS_INLINE_ROUTINE MRSP_Status _MRSP_Can_destroy( MRSP_Control *mrsp )
{
if ( _Resource_Get_owner( &mrsp->Resource ) != NULL ) {
return MRSP_RESOUCE_IN_USE;
}
return MRSP_SUCCESSFUL;
}
RTEMS_INLINE_ROUTINE void _MRSP_Destroy( MRSP_Control *mrsp )
{
_ISR_lock_Destroy( &mrsp->Lock );
_Workspace_Free( mrsp->ceiling_priorities );
return MRSP_SUCCESSFUL;
}
/** @} */