提交 055f648c 编写于 作者: A Asias He 提交者: Nicholas Bellinger

tcm_vhost: Send bad target to guest when cmd fails

Send bad target to guest in case:
1) we can not allocate the cmd
2) fail to submit the cmd
Signed-off-by: NAsias He <asias@redhat.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
上级 637ab21e
......@@ -703,7 +703,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
if (IS_ERR(tv_cmd)) {
vq_err(vq, "vhost_scsi_allocate_cmd failed %ld\n",
PTR_ERR(tv_cmd));
break;
goto err_cmd;
}
pr_debug("Allocated tv_cmd: %p exp_data_len: %d, data_direction"
": %d\n", tv_cmd, exp_data_len, data_direction);
......@@ -729,7 +729,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
scsi_command_size(tv_cmd->tvc_cdb),
TCM_VHOST_MAX_CDB_SIZE);
goto err;
goto err_free;
}
tv_cmd->tvc_lun = ((v_req.lun[2] << 8) | v_req.lun[3]) & 0x3FFF;
......@@ -742,7 +742,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
data_direction == DMA_TO_DEVICE);
if (unlikely(ret)) {
vq_err(vq, "Failed to map iov to sgl\n");
goto err;
goto err_free;
}
}
......@@ -765,8 +765,10 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
mutex_unlock(&vq->mutex);
return;
err:
err_free:
vhost_scsi_free_cmd(tv_cmd);
err_cmd:
vhost_scsi_send_bad_target(vs, vq, head, out);
mutex_unlock(&vq->mutex);
}
......
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