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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/sysbus.h
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/sysbus.h')
-rw-r--r--hw/sysbus.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/sysbus.h b/hw/sysbus.h
index d48ca8ca3d..1a8f289c75 100644
--- a/hw/sysbus.h
+++ b/hw/sysbus.h
@@ -25,7 +25,7 @@ struct SysBusDevice {
     } mmio[QDEV_MAX_MMIO];
 };
 
-typedef void (*sysbus_initfn)(SysBusDevice *dev);
+typedef int (*sysbus_initfn)(SysBusDevice *dev);
 
 /* Macros to compensate for lack of type inheritance in C.  */
 #define sysbus_from_qdev(dev) ((SysBusDevice *)(dev))