+ scsi_result = kmalloc(252, GFP_ATOMIC | ((scmd->device->host->hostt->unchecked_isa_dma) ? __GFP_DMA : 0));
+
+
+ if (unlikely(!scsi_result)) {
+ printk(KERN_ERR "%s: cannot allocate scsi_result.\n",
+ __FUNCTION__);
+ return FAILED;
+ }
+
+ /*
+ * zero the sense buffer. some host adapters automatically always
+ * request sense, so it is not a good idea that
+ * scmd->request_buffer and scmd->sense_buffer point to the same
+ * address (db). 0 is not a valid sense code.
+ */
+ memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
+ memset(scsi_result, 0, 252);
+
+ saved_result = scmd->result;
+ scmd->request_buffer = scsi_result;
+ scmd->request_bufflen = 252;
+ scmd->use_sg = 0;
+ scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]);
+ scmd->sc_data_direction = DMA_FROM_DEVICE;
+ scmd->underflow = 0;
+
+ rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT);
+
+ /* last chance to have valid sense data */
+ if(!SCSI_SENSE_VALID(scmd)) {
+ memcpy(scmd->sense_buffer, scmd->request_buffer,
+ sizeof(scmd->sense_buffer));
+ }
+
+ kfree(scsi_result);
+
+ /*
+ * when we eventually call scsi_finish, we really wish to complete
+ * the original request, so let's restore the original data. (db)
+ */
+ scsi_setup_cmd_retry(scmd);
+ scmd->result = saved_result;
+ return rtn;