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hw/block-common: Factor out fall back to legacy -drive serial=...

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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2012-07-11 15:08:37 +02:00 • committed by Kevin Wolf
parent 31e404f4ff
commit 911525dba9
7 changed files with 34 additions and 33 deletions
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10
hw/usb/dev-storage.c
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@ -532,13 +532,14 @@ static int usb_msd_initfn(USBDevice *dev)
{
MSDState *s = DO_UPCAST(MSDState, dev, dev);
BlockDriverState *bs = s->conf.bs;
DriveInfo *dinfo;
if (!bs) {
error_report("drive property not set");
return -1;
}
blkconf_serial(&s->conf, &s->serial);
/*
* Hack alert: this pretends to be a block device, but it's really
* a SCSI bus that can serve only a single device, which it
@ -551,13 +552,6 @@ static int usb_msd_initfn(USBDevice *dev)
bdrv_detach_dev(bs, &s->dev.qdev);
s->conf.bs = NULL;
if (!s->serial) {
/* try to fall back to value set with legacy -drive serial=... */
dinfo = drive_get_by_blockdev(bs);
if (*dinfo->serial) {
s->serial = strdup(dinfo->serial);
}
}
if (s->serial) {
usb_desc_set_string(dev, STR_SERIALNUMBER, s->serial);
} else {