@@ -68,6 +68,9 @@ struct SCSIDiskClass {
/*
* Callbacks receive ret == 0 for success. Errors are represented either as
* negative errno values, or as positive SAM status codes.
+ *
+ * Beware: For errors returned in host_status, the function may directly
+ * complete the request and never call the callback.
*/
DMAIOFunc *dma_readv;
DMAIOFunc *dma_writev;
@@ -381,6 +384,7 @@ done:
scsi_req_unref(&r->req);
}
+/* May not be called in all error cases, don't rely on cleanup here */
static void scsi_dma_complete(void *opaque, int ret)
{
SCSIDiskReq *r = (SCSIDiskReq *)opaque;
@@ -421,6 +425,7 @@ done:
scsi_req_unref(&r->req);
}
+/* May not be called in all error cases, don't rely on cleanup here */
static void scsi_read_complete(void *opaque, int ret)
{
SCSIDiskReq *r = (SCSIDiskReq *)opaque;
@@ -560,6 +565,7 @@ done:
scsi_req_unref(&r->req);
}
+/* May not be called in all error cases, don't rely on cleanup here */
static void scsi_write_complete(void * opaque, int ret)
{
SCSIDiskReq *r = (SCSIDiskReq *)opaque;
@@ -2821,6 +2827,7 @@ static void scsi_block_sgio_complete(void *opaque, int ret)
sg_io_hdr_t *io_hdr = &req->io_header;
if (ret == 0) {
+ /* FIXME This skips calling req->cb() and any cleanup in it */
if (io_hdr->host_status != SCSI_HOST_OK) {
scsi_req_complete_failed(&r->req, io_hdr->host_status);
scsi_req_unref(&r->req);