qdev: add return value to init() callbacks.

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

View file

@ -803,7 +803,7 @@ static void ne2000_cleanup(VLANClientState *vc)
unregister_savevm("ne2000", s);
}
static void pci_ne2000_init(PCIDevice *pci_dev)
static int pci_ne2000_init(PCIDevice *pci_dev)
{
PCINE2000State *d = (PCINE2000State *)pci_dev;
NE2000State *s;
@ -830,6 +830,7 @@ static void pci_ne2000_init(PCIDevice *pci_dev)
qemu_format_nic_info_str(s->vc, s->macaddr);
register_savevm("ne2000", -1, 3, ne2000_save, ne2000_load, s);
return 0;
}
static PCIDeviceInfo ne2000_info = {