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authorAndreas Färber <afaerber@suse.de>2013-07-17 14:14:41 +0200
committerAndreas Färber <afaerber@suse.de>2013-07-23 00:37:35 +0200
commita3ef7a61e3706ba81e31a8092b966d6aeae5333e (patch)
tree8b11cfa4260a2e1e2772a95c231a2da3dcc8eea8 /hw/block
parent940194c2369e50d91d1abf6f36d43853eea5e539 (diff)
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>
Diffstat (limited to 'hw/block')
-rw-r--r--hw/block/fdc.c40
1 files changed, 22 insertions, 18 deletions
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index 9a983fbc5a..d32f6ba411 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -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;
}
}