iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

scsi: fdomain: use BSTAT_{MSG|CMD|IO} in fdomain_work()

Browse Source 
Commit 1697c6a64c ("scsi: fdomain: Add register definitions") somehow
missed the masking of the 'status' variable with the SCSI phase mask in
fdomain_work(), leaving the magic number intact. Fix this issue; while at
it, change the order of BSTAT_{MSG|CMD|IO} bits in the MESSAGE IN
phase *case* (with no change in the generated object file).

Fixes: 1697c6a64c ("scsi: fdomain: Add register definitions")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sergei Shtylyov 2019-07-16 23:40:47 +03:00 committed by Martin K. Petersen
parent a9651be7e4
commit 7a1c0b79db
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/fdomain.c
View File

@ -306,7 +306,7 @@ static void fdomain_work(struct work_struct *work)
status = inb(fd->base + REG_BSTAT);
if (status & BSTAT_REQ) {
switch (status & 0x0e) {
switch (status & (BSTAT_MSG | BSTAT_CMD | BSTAT_IO)) {
case BSTAT_CMD: /* COMMAND OUT */
outb(cmd->cmnd[cmd->SCp.sent_command++],
fd->base + REG_SCSI_DATA);
@ -331,7 +331,7 @@ static void fdomain_work(struct work_struct *work)
case BSTAT_MSG | BSTAT_CMD: /* MESSAGE OUT */
outb(MESSAGE_REJECT, fd->base + REG_SCSI_DATA);
break;
case BSTAT_MSG | BSTAT_IO | BSTAT_CMD: /* MESSAGE IN */
case BSTAT_MSG | BSTAT_CMD | BSTAT_IO: /* MESSAGE IN */
cmd->SCp.Message = inb(fd->base + REG_SCSI_DATA);
if (!cmd->SCp.Message)
++done;