Previous commit ensured when entering isa_register_portio_list(),
'dev' is not NULL. Being a TYPE_ISA_DEVICE, the device must sit
on a ISA bus. This means isa_bus_new() as already been called
and 'isabus' can not be NULL.
Simplify by removing the 'isabus' NULL check in
isa_register_portio_list(). 'isabus' is now only used in
isa_bus_new(). Reduce its scope by only declaring it the
function using it (this will allows us to create multiple
ISA buses later).
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
hw/isa/isa-bus.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index 3036341d3b..8e3ca3785e 100644
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -25,8 +25,6 @@
#include "sysemu/sysemu.h"
#include "hw/isa/isa.h"
-static ISABus *isabus;
-
static char *isabus_get_fw_dev_path(DeviceState *dev);
static void isa_bus_class_init(ObjectClass *klass, void *data)
@@ -52,6 +50,8 @@ static const TypeInfo isa_bus_info = {
ISABus *isa_bus_new(DeviceState *dev, MemoryRegion* address_space,
MemoryRegion *address_space_io, Error **errp)
{
+ static ISABus *isabus;
+
if (isabus) {
error_setg(errp, "Can't create a second ISA bus");
return NULL;
@@ -132,10 +132,6 @@ int isa_register_portio_list(ISADevice *dev,
assert(dev);
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. */
--
2.38.1
