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authorGerd Hoffmann <kraxel@redhat.com>2009-08-14 10:36:05 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-08-27 20:43:28 -0500
commit81a322d4a1b68d47908a6630bf22897a289722aa (patch)
treecdca9840d0620d9e0b46d7b81c58abe04a372b78 /hw/apb_pci.c
parent24e6f3551f3c8ea7cc7524a3e64e84beca59618f (diff)
downloadfocaccia-qemu-81a322d4a1b68d47908a6630bf22897a289722aa.tar.gz
focaccia-qemu-81a322d4a1b68d47908a6630bf22897a289722aa.zip
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>
Diffstat (limited to 'hw/apb_pci.c')
-rw-r--r--hw/apb_pci.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/apb_pci.c b/hw/apb_pci.c
index 13284c63a8..d114e555b8 100644
--- a/hw/apb_pci.c
+++ b/hw/apb_pci.c
@@ -260,7 +260,7 @@ PCIBus *pci_apb_init(target_phys_addr_t special_base,
     return d->host_state.bus;
 }
 
-static void pci_pbm_init_device(SysBusDevice *dev)
+static int pci_pbm_init_device(SysBusDevice *dev)
 {
 
     APBState *s;
@@ -283,9 +283,10 @@ static void pci_pbm_init_device(SysBusDevice *dev)
     pci_mem_data = cpu_register_io_memory(pci_apb_read,
                                           pci_apb_write, &s->host_state);
     sysbus_init_mmio(dev, 0x10000000ULL, pci_mem_data);
+    return 0;
 }
 
-static void pbm_pci_host_init(PCIDevice *d)
+static int pbm_pci_host_init(PCIDevice *d)
 {
     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_SUN);
     pci_config_set_device_id(d->config, PCI_DEVICE_ID_SUN_SABRE);
@@ -298,6 +299,7 @@ static void pbm_pci_host_init(PCIDevice *d)
     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
     d->config[0x0D] = 0x10; // latency_timer
     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
+    return 0;
 }
 
 static PCIDeviceInfo pbm_pci_host_info = {