add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/scsi/53c700.c
..
..
@@ -1600,7 +1600,7 @@
1600
1600
 				printk("scsi%d (%d:%d) PHASE MISMATCH IN SEND MESSAGE %d remain, return %p[%04x], phase %s\n", host->host_no, pun, lun, count, (void *)temp, temp - hostdata->pScript, sbcl_to_string(NCR_700_readb(host, SBCL_REG)));
1601
1601
 #endif
1602
1602
 				resume_offset = hostdata->pScript + Ent_SendMessagePhaseMismatch;
1603
-			} else if(dsp >= to32bit(&slot->pSG[0].ins) &&
1603
+			} else if (slot && dsp >= to32bit(&slot->pSG[0].ins) &&
1604
1604
 				  dsp <= to32bit(&slot->pSG[NCR_700_SG_SEGMENTS].ins)) {
1605
1605
 				int data_transfer = NCR_700_readl(host, DBC_REG) & 0xffffff;
1606
1606
 				int SGcount = (dsp - to32bit(&slot->pSG[0].ins))/sizeof(struct NCR_700_SG_List);