static void parse_drive(DeviceState *dev, const char *str, void **ptr,
const char *propname, Error **errp)
{
BlockBackend *blk;
blk = blk_by_name(str);
if (!blk) {
error_setg(errp, "Property '%s.%s' can't find value '%s'",
object_get_typename(OBJECT(dev)), propname, str);
return;
}
if (blk_attach_dev(blk, dev) < 0) {
DriveInfo *dinfo = blk_legacy_dinfo(blk);
if (dinfo && dinfo->type != IF_NONE) {
error_setg(errp, "Drive '%s' is already in use because "
"it has been automatically connected to another "
"device (did you need 'if=none' in the drive options?)",
str);
} else {
error_setg(errp, "Drive '%s' is already in use by another device",
str);
}
return;
}
*ptr = blk;
}
static int parse_drive(DeviceState *dev, const char *str, void **ptr)
{
BlockBackend *blk;
blk = blk_by_name(str);
if (!blk) {
return -ENOENT;
}
if (blk_attach_dev(blk, dev) < 0) {
return -EEXIST;
}
*ptr = blk;
return 0;
}
static void parse_drive(DeviceState *dev, const char *str, void **ptr,
const char *propname, Error **errp)
{
BlockBackend *blk;
bool blk_created = false;
int ret;
blk = blk_by_name(str);
if (!blk) {
BlockDriverState *bs = bdrv_lookup_bs(NULL, str, NULL);
if (bs) {
blk = blk_new(0, BLK_PERM_ALL);
blk_created = true;
ret = blk_insert_bs(blk, bs, errp);
if (ret < 0) {
goto fail;
}
}
}
if (!blk) {
error_setg(errp, "Property '%s.%s' can't find value '%s'",
object_get_typename(OBJECT(dev)), propname, str);
goto fail;
}
if (blk_attach_dev(blk, dev) < 0) {
DriveInfo *dinfo = blk_legacy_dinfo(blk);
if (dinfo && dinfo->type != IF_NONE) {
error_setg(errp, "Drive '%s' is already in use because "
"it has been automatically connected to another "
"device (did you need 'if=none' in the drive options?)",
str);
} else {
error_setg(errp, "Drive '%s' is already in use by another device",
str);
}
goto fail;
}
*ptr = blk;
fail:
if (blk_created) {
/* If we need to keep a reference, blk_attach_dev() took it */
blk_unref(blk);
}
}
