diff options
Diffstat (limited to 'hw/isa')
| -rw-r--r-- | hw/isa/isa-bus.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c index 7820068e6e..cffaa35e9c 100644 --- a/hw/isa/isa-bus.c +++ b/hw/isa/isa-bus.c @@ -131,13 +131,17 @@ void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start) isa_init_ioport(dev, start); } -void isa_register_portio_list(ISADevice *dev, - PortioList *piolist, uint16_t start, - const MemoryRegionPortio *pio_start, - void *opaque, const char *name) +int isa_register_portio_list(ISADevice *dev, + PortioList *piolist, uint16_t start, + const MemoryRegionPortio *pio_start, + void *opaque, const char *name) { assert(piolist && !piolist->owner); + if (!isabus) { + return -ENODEV; + } + /* START is how we should treat DEV, regardless of the actual contents of the portio array. This is how the old code actually handled e.g. the FDC device. */ @@ -145,6 +149,8 @@ void isa_register_portio_list(ISADevice *dev, portio_list_init(piolist, OBJECT(dev), pio_start, opaque, name); portio_list_add(piolist, isabus->address_space_io, start); + + return 0; } static void isa_device_init(Object *obj) |