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fdc: Improve error propagation for QOM realize 

Rename fdctrl_init_common() to fdctrl_realize_common() and let
fdctrl_connect_drives() propagate an Error through it.

Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-07-17 14:14:41 +02:00
parent 940194c236
commit a3ef7a61e3
1 changed files with 22 additions and 18 deletions
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40
hw/block/fdc.c
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@ -1997,7 +1997,7 @@ static const BlockDevOps fdctrl_block_ops = {
};
/* Init functions */
static int fdctrl_connect_drives(FDCtrl *fdctrl)
static void fdctrl_connect_drives(FDCtrl *fdctrl, Error **errp)
{
unsigned int i;
FDrive *drive;
@ -2008,12 +2008,12 @@ static int fdctrl_connect_drives(FDCtrl *fdctrl)
if (drive->bs) {
if (bdrv_get_on_error(drive->bs, 0) != BLOCKDEV_ON_ERROR_ENOSPC) {
error_report("fdc doesn't support drive option werror");
return -1;
error_setg(errp, "fdc doesn't support drive option werror");
return;
}
if (bdrv_get_on_error(drive->bs, 1) != BLOCKDEV_ON_ERROR_REPORT) {
error_report("fdc doesn't support drive option rerror");
return -1;
error_setg(errp, "fdc doesn't support drive option rerror");
return;
}
}
@ -2023,7 +2023,6 @@ static int fdctrl_connect_drives(FDCtrl *fdctrl)
bdrv_set_dev_ops(drive->bs, &fdctrl_block_ops, drive);
}
}
return 0;
}
ISADevice *fdctrl_init_isa(ISABus *bus, DriveInfo **fds)
@ -2089,7 +2088,7 @@ void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
*fdc_tc = qdev_get_gpio_in(dev, 0);
}
static int fdctrl_init_common(FDCtrl *fdctrl)
static void fdctrl_realize_common(FDCtrl *fdctrl, Error **errp)
{
int i, j;
static int command_tables_inited = 0;
@ -2110,15 +2109,16 @@ static int fdctrl_init_common(FDCtrl *fdctrl)
fdctrl->fifo = qemu_memalign(512, FD_SECTOR_LEN);
fdctrl->fifo_size = 512;
fdctrl->result_timer = qemu_new_timer_ns(vm_clock,
fdctrl_result_timer, fdctrl);
fdctrl_result_timer, fdctrl);
fdctrl->version = 0x90; /* Intel 82078 controller */
fdctrl->config = FD_CONFIG_EIS | FD_CONFIG_EFIFO; /* Implicit seek, polling & FIFO enabled */
fdctrl->num_floppies = MAX_FD;
if (fdctrl->dma_chann != -1)
if (fdctrl->dma_chann != -1) {
DMA_register_channel(fdctrl->dma_chann, &fdctrl_transfer_handler, fdctrl);
return fdctrl_connect_drives(fdctrl);
}
fdctrl_connect_drives(fdctrl, errp);
}
static const MemoryRegionPortio fdc_portio_list[] = {
@ -2132,7 +2132,7 @@ static void isabus_fdc_realize(DeviceState *dev, Error **errp)
ISADevice *isadev = ISA_DEVICE(dev);
FDCtrlISABus *isa = ISA_FDC(dev);
FDCtrl *fdctrl = &isa->state;
int ret;
Error *err = NULL;
isa_register_portio_list(isadev, isa->iobase, fdc_portio_list, fdctrl,
"fdc");
@ -2141,9 +2141,9 @@ static void isabus_fdc_realize(DeviceState *dev, Error **errp)
fdctrl->dma_chann = isa->dma;
qdev_set_legacy_instance_id(dev, isa->iobase, 2);
ret = fdctrl_init_common(fdctrl);
if (ret < 0) {
error_setg(errp, "Floppy init failed.");
fdctrl_realize_common(fdctrl, &err);
if (err != NULL) {
error_propagate(errp, err);
return;
}
@ -2165,6 +2165,7 @@ static void sysbus_fdc_realize(DeviceState *dev, Error **errp)
FDCtrlSysBus *sys = SYSBUS_FDC(dev);
FDCtrl *fdctrl = &sys->state;
SysBusDevice *b = SYS_BUS_DEVICE(dev);
Error *err = NULL;
sysbus_init_mmio(b, &fdctrl->iomem);
sysbus_init_irq(b, &fdctrl->irq);
@ -2172,8 +2173,9 @@ static void sysbus_fdc_realize(DeviceState *dev, Error **errp)
fdctrl->dma_chann = -1;
qdev_set_legacy_instance_id(dev, 0 /* io */, 2); /* FIXME */
if (fdctrl_init_common(fdctrl) < 0) {
error_setg(errp, "Floppy init failed.");
fdctrl_realize_common(fdctrl, &err);
if (err != NULL) {
error_propagate(errp, err);
return;
}
}
@ -2192,6 +2194,7 @@ static void sun4m_fdc_realize(DeviceState *dev, Error **errp)
FDCtrlSysBus *sys = SYSBUS_FDC(dev);
FDCtrl *fdctrl = &sys->state;
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
Error *err = NULL;
sysbus_init_mmio(sbd, &fdctrl->iomem);
sysbus_init_irq(sbd, &fdctrl->irq);
@ -2199,8 +2202,9 @@ static void sun4m_fdc_realize(DeviceState *dev, Error **errp)
fdctrl->sun4m = 1;
qdev_set_legacy_instance_id(dev, 0 /* io */, 2); /* FIXME */
if (fdctrl_init_common(fdctrl) < 0) {
error_setg(errp, "Floppy init failed.");
fdctrl_realize_common(fdctrl, &err);
if (err != NULL) {
error_propagate(errp, err);
return;
}
}