diff --git a/dma-helpers.c b/dma-helpers.c
index 92c5d55..b521d84 100644
--- a/dma-helpers.c
+++ b/dma-helpers.c
@@ -192,7 +192,7 @@ static const AIOCBInfo dma_aiocb_info = {
 };
 
 BlockAIOCB *dma_blk_io(AioContext *ctx,
-    QEMUSGList *sg, uint64_t opaque,
+    QEMUSGList *sg, uint64_t offset,
     DMAIOFunc *io_func, void *io_func_opaque,
     BlockCompletionFunc *cb,
     void *opaque, DMADirection dir)
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 02faa3a..f7a23fc 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -540,7 +540,6 @@ static void scsi_write_data(SCSIRequest *req)
     if (r->req.sg) {
         dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_WRITE);
         r->req.resid -= r->req.sg->size;
-                                     scsi_dma_complete, r);
         r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk),
                                   r->req.sg, r->sector << BDRV_SECTOR_BITS,
                                   sdc->dma_writev, r, scsi_dma_complete, r,