// Tries to free all resources and also passes through any errors
//
// args: the error arg will be overwritten with KERN_FAILURE in case of an error
// or returned unmodified in case everything went well.
// return: the given error argument or KERN_FAILURE if anything went wrong
static int pmem_cleanup(int error) {
if (pmem_zero_page) {
OSFree(pmem_zero_page, PAGE_SIZE, pmem_tag);
}
if (pte_mmap != NULL) {
pte_mmap_osx_delete(pte_mmap);
}
if (pmem_tag) {
OSMalloc_Tagfree(pmem_tag);
}
if (pmem_devpmemnode) {
devfs_remove(pmem_devpmemnode);
}
if (pmem_devmajor != -1) {
int devindex = 0;
devindex = cdevsw_remove(pmem_devmajor, &pmem_cdevsw);
if (devindex != pmem_devmajor) {
pmem_error("Failed to remove cdevsw, cdevsw_remove() returned %d,"
"should be %d", devindex, pmem_devmajor);
pmem_error("Kext will not be unloaded as an uio could result"
" in calling non-existent code");
error = KERN_FAILURE;
}
}
return error;
}
//stop
void com_objective_see_firewall::stop(IOService *provider)
{
//dbg msg
IOLog("LULU: in %s\n", __FUNCTION__);
//free rule locks, dictionary, etc
uninitRules();
//free shared memory descriptor
if(NULL != sharedMemoryDescriptor)
{
//release
sharedMemoryDescriptor->release();
//unset
sharedMemoryDescriptor = NULL;
}
//free shared data queue
if(NULL != sharedDataQueue)
{
//release
sharedDataQueue->release();
//unset
sharedDataQueue = NULL;
}
//free alloc tag
if(NULL != allocTag)
{
//free
OSMalloc_Tagfree(allocTag);
//unset
allocTag = NULL;
}
//super
super::stop(provider);
bail:
return;
}
void
zfs_context_fini(void)
{
lck_attr_free(zfs_lock_attr);
zfs_lock_attr = NULL;
lck_grp_attr_free(zfs_group_attr);
zfs_group_attr = NULL;
lck_grp_free(zfs_mutex_group);
zfs_mutex_group = NULL;
lck_grp_free(zfs_rwlock_group);
zfs_rwlock_group = NULL;
lck_grp_free(zfs_spinlock_group);
zfs_spinlock_group = NULL;
OSMalloc_Tagfree(zfs_kmem_alloc_tag);
}
