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qdev: add return value to init() callbacks.

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Sorry folks, but it has to be.  One more of these invasive qdev patches.

We have a serious design bug in the qdev interface:  device init
callbacks can't signal failure because the init() callback has no
return value.  This patch fixes it.

We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault.  This patch fixes it.

With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-08-14 10:36:05 +02:00 • committed by Anthony Liguori
parent 24e6f3551f
commit 81a322d4a1
102 changed files with 334 additions and 193 deletions
Download patch file Download diff file Expand all files Collapse all files

3
hw/slavio_intctl.c
View file

@ -420,7 +420,7 @@ static void slavio_intctl_reset(void *opaque)
slavio_check_interrupts(s, 0);
}
static void slavio_intctl_init1(SysBusDevice *dev)
static int slavio_intctl_init1(SysBusDevice *dev)
{
SLAVIO_INTCTLState *s = FROM_SYSBUS(SLAVIO_INTCTLState, dev);
int io_memory;
@ -446,6 +446,7 @@ static void slavio_intctl_init1(SysBusDevice *dev)
slavio_intctl_load, s);
qemu_register_reset(slavio_intctl_reset, s);
slavio_intctl_reset(s);
return 0;
}
static SysBusDeviceInfo slavio_intctl_info = {