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scsi hotplug: Set DriveInfo member bus correctly 

drive_init() picks the first free bus and unit number, unless the user
specifies them.

This isn't a good fit for the drive_add monitor command, because there
we specify the controller by PCI address instead of using bus number
set by drive_init().

scsi_hot_add() takes care to replace the unit number set by
drive_init() by the real one, but it neglects to replace the bus
number.  Thus, bus/unit in DriveInfo may be bogus.  Affects
drive_get() and drive_get_max_bus().  I'm not aware of anything bad
happening because of that; looks like by the time we're hot-plugging,
the two functions aren't used anymore.  Fix it anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2011-01-28 11:21:36 +01:00 committed by Kevin Wolf
parent 1b40bbd13a
commit 31e1ea3ee7
1 changed files with 1 additions and 0 deletions
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hw/pci-hotplug.c
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@ -90,6 +90,7 @@ static int scsi_hot_add(Monitor *mon, DeviceState *adapter,
* specified). * specified).
*/ */
dinfo->unit = qemu_opt_get_number(dinfo->opts, "unit", -1); dinfo->unit = qemu_opt_get_number(dinfo->opts, "unit", -1);
dinfo->bus = scsibus->busnr;
scsidev = scsi_bus_legacy_add_drive(scsibus, dinfo->bdrv, dinfo->unit, false); scsidev = scsi_bus_legacy_add_drive(scsibus, dinfo->bdrv, dinfo->unit, false);
if (!scsidev) { if (!scsidev) {
return -1; return -1;