diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide-cd.c | 57 |
1 files changed, 32 insertions, 25 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index e946f0ecbb9c..43db330d7b5d 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -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; } /* |