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vt82c686: Simplify vt82c686b_realize()

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Remove unneeded variables and setting value to 0 on zero initialised
data and replace check for error with error_fatal. Rationalise loop
that sets PCI config header fields read only.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <e4caf35ca10a68f5c74ae3f93fa0bcfa9457beea.1610223397.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
BALATON Zoltan 2021-01-09 21:16:36 +01:00 committed by Philippe Mathieu-Daudé
parent e1a69736e5
commit 9859ad1c4b
1 changed files with 6 additions and 14 deletions
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20
hw/isa/vt82c686.c
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@ -363,24 +363,16 @@ static void vt82c686b_isa_reset(DeviceState *dev)
static void vt82c686b_realize(PCIDevice *d, Error **errp)
{
VT82C686BISAState *s = VT82C686B_ISA(d);
uint8_t *pci_conf;
DeviceState *dev = DEVICE(d);
ISABus *isa_bus;
uint8_t *wmask;
int i;
isa_bus = isa_bus_new(DEVICE(d), get_system_memory(),
pci_address_space_io(d), errp);
if (!isa_bus) {
return;
}
isa_bus = isa_bus_new(dev, get_system_memory(), pci_address_space_io(d),
&error_fatal);
pci_conf = d->config;
pci_config_set_prog_interface(pci_conf, 0x0);
wmask = d->wmask;
for (i = 0x00; i < 0xff; i++) {
if (i <= 0x03 || (i >= 0x08 && i <= 0x3f)) {
wmask[i] = 0x00;
for (i = 0; i < PCI_CONFIG_HEADER_SIZE; i++) {
if (i < PCI_COMMAND || i >= PCI_REVISION_ID) {
d->wmask[i] = 0;
}
}