forked from luck/tmp_suning_uos_patched
ide-cd: convert cdrom_decode_status() to use switch statements
Based on earlier work by Borislav Petkov. Convert cdrom_decode_status() to use switch statements in preparation to unify handling of fs and pc requests. While at it: - remove superfluous comments and do minor CodingStyle fixups There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
parent
98036abf31
commit
e01f251fd0
@ -340,15 +340,14 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
if (blk_pc_request(rq) && !rq->errors)
|
||||
rq->errors = SAM_STAT_CHECK_CONDITION;
|
||||
|
||||
/* check for tray open */
|
||||
if (sense_key == NOT_READY) {
|
||||
switch (sense_key) {
|
||||
case NOT_READY:
|
||||
cdrom_saw_media_change(drive);
|
||||
} else if (sense_key == UNIT_ATTENTION) {
|
||||
/* check for media change */
|
||||
break;
|
||||
case UNIT_ATTENTION:
|
||||
cdrom_saw_media_change(drive);
|
||||
return 0;
|
||||
} else if (sense_key == ILLEGAL_REQUEST &&
|
||||
rq->cmd[0] == GPCMD_START_STOP_UNIT) {
|
||||
case ILLEGAL_REQUEST:
|
||||
/*
|
||||
* Don't print error message for this condition--
|
||||
* SFF8090i indicates that 5/24/00 is the correct
|
||||
@ -356,9 +355,13 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
* drive doesn't have that capability.
|
||||
* cdrom_log_sense() knows this!
|
||||
*/
|
||||
} else if (!quiet) {
|
||||
/* otherwise, print an error */
|
||||
ide_dump_status(drive, "packet command error", stat);
|
||||
if (rq->cmd[0] == GPCMD_START_STOP_UNIT)
|
||||
break;
|
||||
/* fall-through */
|
||||
default:
|
||||
if (!quiet)
|
||||
ide_dump_status(drive, "packet command error",
|
||||
stat);
|
||||
}
|
||||
|
||||
rq->cmd_flags |= REQ_FAILED;
|
||||
@ -378,12 +381,11 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
if (blk_noretry_request(rq))
|
||||
do_end_request = 1;
|
||||
|
||||
if (sense_key == NOT_READY) {
|
||||
/* tray open */
|
||||
switch (sense_key) {
|
||||
case NOT_READY:
|
||||
if (rq_data_dir(rq) == READ) {
|
||||
cdrom_saw_media_change(drive);
|
||||
|
||||
/* fail the request */
|
||||
if (!quiet)
|
||||
printk(KERN_ERR PFX "%s: tray open\n",
|
||||
drive->name);
|
||||
@ -392,8 +394,8 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
return 1;
|
||||
}
|
||||
do_end_request = 1;
|
||||
} else if (sense_key == UNIT_ATTENTION) {
|
||||
/* media change */
|
||||
break;
|
||||
case UNIT_ATTENTION:
|
||||
cdrom_saw_media_change(drive);
|
||||
|
||||
/*
|
||||
@ -402,8 +404,9 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
*/
|
||||
if (++rq->errors > ERROR_MAX)
|
||||
do_end_request = 1;
|
||||
} else if (sense_key == ILLEGAL_REQUEST ||
|
||||
sense_key == DATA_PROTECT) {
|
||||
break;
|
||||
case ILLEGAL_REQUEST:
|
||||
case DATA_PROTECT:
|
||||
/*
|
||||
* No point in retrying after an illegal request or data
|
||||
* protect error.
|
||||
@ -411,7 +414,8 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
if (!quiet)
|
||||
ide_dump_status(drive, "command error", stat);
|
||||
do_end_request = 1;
|
||||
} else if (sense_key == MEDIUM_ERROR) {
|
||||
break;
|
||||
case MEDIUM_ERROR:
|
||||
/*
|
||||
* No point in re-trying a zillion times on a bad
|
||||
* sector. If we got here the error is not correctable.
|
||||
@ -420,19 +424,22 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
|
||||
ide_dump_status(drive, "media error "
|
||||
"(bad sector)", stat);
|
||||
do_end_request = 1;
|
||||
} else if (sense_key == BLANK_CHECK) {
|
||||
break;
|
||||
case BLANK_CHECK:
|
||||
/* disk appears blank ?? */
|
||||
if (!quiet)
|
||||
ide_dump_status(drive, "media error (blank)",
|
||||
stat);
|
||||
do_end_request = 1;
|
||||
} else if ((err & ~ATA_ABORTED) != 0) {
|
||||
/* go to the default handler for other errors */
|
||||
ide_error(drive, "cdrom_decode_status", stat);
|
||||
return 1;
|
||||
} else if ((++rq->errors > ERROR_MAX)) {
|
||||
/* we've racked up too many retries, abort */
|
||||
do_end_request = 1;
|
||||
break;
|
||||
default:
|
||||
if (err & ~ATA_ABORTED) {
|
||||
/* go to the default handler for other errors */
|
||||
ide_error(drive, "cdrom_decode_status", stat);
|
||||
return 1;
|
||||
} else if (++rq->errors > ERROR_MAX)
|
||||
/* we've racked up too many retries, abort */
|
||||
do_end_request = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
|
Loading…
Reference in New Issue
Block a user