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optimised device removal & prevent accessing removed devices

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This commit is contained in:
smf- 2011-05-07 09:41:21 +00:00
parent 4b896b641d
commit 3b01fd9a76
1 changed files with 9 additions and 6 deletions
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15
src/emu/mconfig.c
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@ -140,12 +140,14 @@ void machine_config::device_remove_subdevices(const device_t *device)
device_t *sub_device = m_devicelist.first();
while (sub_device != NULL)
{
device_t *next_device = sub_device->next();
if (sub_device->owner() == device)
{
device_remove_subdevices(sub_device);
m_devicelist.remove(sub_device->tag());
}
device_t *next_device = sub_device->next();
if (sub_device->owner() == device)
m_devicelist.remove(*sub_device);
sub_device = next_device;
}
}
@ -192,8 +194,9 @@ device_t *machine_config::device_remove(device_t *owner, const char *tag)
{
astring tempstring;
const char *fulltag = owner->subtag(tempstring, tag);
device_remove_subdevices(m_devicelist.find(fulltag));
m_devicelist.remove(fulltag);
device_t *device=m_devicelist.find(fulltag);
device_remove_subdevices(device);
m_devicelist.remove(*device);
return NULL;
}