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Fix backcompat for hotplug of SCSI controllers

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SCSI controllers have no trouble existing without any attached
disks. This could be achieved with the (legacy) monitor syntax

  pci_add pci_addr=auto storage if=scsi

This is now denied with

  scsi requires a backing file/device.
  failed to add if=scsi

There is no need for this denial and it breaks compatability
with existing QEMU usage, so remove the check for presence
of a drive.

  Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Daniel P. Berrange 2009-12-07 20:51:49 +00:00 committed by Anthony Liguori
parent 47f5ba7248
commit ec7efac4a9
1 changed files with 1 additions and 5 deletions
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6
hw/pci-hotplug.c
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@ -199,14 +199,10 @@ static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
switch (type) {
case IF_SCSI:
if (!dinfo) {
monitor_printf(mon, "scsi requires a backing file/device.\n");
return NULL;
}
dev = pci_create(bus, devfn, "lsi53c895a");
if (qdev_init(&dev->qdev) < 0)
dev = NULL;
if (dev) {
if (dev && dinfo) {
if (scsi_hot_add(&dev->qdev, dinfo, 0) != 0) {
qdev_unplug(&dev->qdev);
dev = NULL;