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Diffstat (limited to 'hw/isa-bus.c')
-rw-r--r--hw/isa-bus.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index 5d8ff84c02..7c2c2619d0 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -83,24 +83,17 @@ void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq)
dev->nirqs++;
}
-void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length)
+static inline void isa_init_ioport(ISADevice *dev, uint16_t ioport)
{
- if (dev->ioport_id == 0 || start < dev->ioport_id) {
- dev->ioport_id = start;
+ if (dev && (dev->ioport_id == 0 || ioport < dev->ioport_id)) {
+ dev->ioport_id = ioport;
}
}
-void isa_init_ioport(ISADevice *dev, uint16_t ioport)
-{
- isa_init_ioport_range(dev, ioport, 1);
-}
-
void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start)
{
memory_region_add_subregion(isabus->address_space_io, start, io);
- if (dev != NULL) {
- isa_init_ioport(dev, start);
- }
+ isa_init_ioport(dev, start);
}
void isa_register_portio_list(ISADevice *dev, uint16_t start,
@@ -112,9 +105,7 @@ void isa_register_portio_list(ISADevice *dev, uint16_t start,
/* 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. */
- if (dev) {
- isa_init_ioport(dev, start);
- }
+ isa_init_ioport(dev, start);
portio_list_init(piolist, pio_start, opaque, name);
portio_list_add(piolist, isabus->address_space_io, start);