diff options
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/fault.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 839b16df72b3..dccb85d91538 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -481,8 +481,7 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write) /* * 'pfault' pseudo page faults routines. */ -static ext_int_info_t ext_int_pfault; -static int pfault_disable = 0; +static int pfault_disable; static int __init nopfault(char *str) { @@ -594,24 +593,28 @@ static void pfault_interrupt(unsigned int ext_int_code, } } -void __init pfault_irq_init(void) +static int __init pfault_irq_init(void) { - if (!MACHINE_IS_VM) - return; + int rc; + if (!MACHINE_IS_VM) + return 0; /* * Try to get pfault pseudo page faults going. */ - if (register_early_external_interrupt(0x2603, pfault_interrupt, - &ext_int_pfault) != 0) - panic("Couldn't request external interrupt 0x2603"); - + rc = register_external_interrupt(0x2603, pfault_interrupt); + if (rc) { + pfault_disable = 1; + return rc; + } if (pfault_init() == 0) - return; + return 0; /* Tough luck, no pfault. */ pfault_disable = 1; - unregister_early_external_interrupt(0x2603, pfault_interrupt, - &ext_int_pfault); + unregister_external_interrupt(0x2603, pfault_interrupt); + return 0; } +early_initcall(pfault_irq_init); + #endif |