lockdep_assert_held_write(&cxl_dpa_rwsem);
- if (!len)
- goto success;
+ if (!len) {
+ dev_warn(dev, "decoder%d.%d: empty reservation attempted\n",
+ port->id, cxled->cxld.id);
+ return -EINVAL;
+ }
if (cxled->dpa_res) {
dev_dbg(dev, "decoder%d.%d: existing allocation %pr assigned\n",
cxled->mode = CXL_DECODER_MIXED;
}
-success:
port->hdm_end++;
get_device(&cxled->cxld.dev);
return 0;
port->id, cxld->id);
return -ENXIO;
}
+
+ if (size == 0) {
+ dev_warn(&port->dev,
+ "decoder%d.%d: Committed with zero size\n",
+ port->id, cxld->id);
+ return -ENXIO;
+ }
port->commit_end = cxld->id;
} else {
/* unless / until type-2 drivers arrive, assume type-3 */