IOS HLE: STM: Check if there is already an event hook

For IOCTL_STM_EVENTHOOK, IOS checks if there is already an event hook
to prevent overriding an existing event hook message with a new one,
without first releasing it.
This commit is contained in:
Léo Lam 2017-01-08 20:52:48 +01:00
parent 5135445298
commit 23162ac722

View file

@ -106,6 +106,12 @@ IPCCommandResult CWII_IPC_HLE_Device_stm_eventhook::IOCtl(u32 command_address)
return GetDefaultReply();
}
if (s_event_hook_address != 0)
{
Memory::Write_U32(FS_EEXIST, command_address + 4);
return GetDefaultReply();
}
// IOCTL_STM_EVENTHOOK waits until the reset button or power button
// is pressed.
s_event_hook_address = command_address;