ide-cd: unify cdrom_newpc_intr() exit paths
* Move cdrom_end_request() calls from cdrom_decode_status()
and ide_cd_check_ireason() to cdrom_newpc_intr().
* Unify cdrom_newpc_intr() exit paths.
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index b66da3f..4c32e8d 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -296,7 +296,8 @@
/*
* Returns:
* 0: if the request should be continued.
- * 1: if the request was ended.
+ * 1: if the request will be going through error recovery.
+ * 2: if the request should be ended.
*/
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
@@ -329,10 +330,7 @@
* Just give up.
*/
rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
- ide_error(drive, "request sense failure", stat);
- return 1;
-
+ return 2;
} else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) {
/* All other functions, except for READ. */
@@ -472,14 +470,12 @@
*/
if (stat & ATA_ERR)
cdrom_queue_request_sense(drive, NULL, NULL);
+ return 1;
} else {
blk_dump_rq_flags(rq, PFX "bad rq");
- cdrom_end_request(drive, 0);
+ return 2;
}
- /* retry, or handle the next request */
- return 1;
-
end_request:
if (stat & ATA_ERR) {
struct request_queue *q = drive->queue;
@@ -492,10 +488,9 @@
hwif->rq = NULL;
cdrom_queue_request_sense(drive, rq->sense, rq);
+ return 1;
} else
- cdrom_end_request(drive, 0);
-
- return 1;
+ return 2;
}
/*
@@ -539,7 +534,6 @@
if (rq->cmd_type == REQ_TYPE_ATA_PC)
rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
return -1;
}
@@ -741,7 +735,8 @@
xfer_func_t *xferfunc;
ide_expiry_t *expiry = NULL;
int dma_error = 0, dma, stat, thislen, uptodate = 0;
- int write = (rq_data_dir(rq) == WRITE) ? 1 : 0;
+ int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc;
+ int sense = blk_sense_request(rq);
unsigned int timeout;
u16 len;
u8 ireason;
@@ -761,8 +756,12 @@
}
}
- if (cdrom_decode_status(drive, 0, &stat))
+ rc = cdrom_decode_status(drive, 0, &stat);
+ if (rc) {
+ if (rc == 2)
+ goto out_end;
return ide_stopped;
+ }
/* using dma, transfer is complete now */
if (dma) {
@@ -807,8 +806,6 @@
rq->cmd_flags |= REQ_FAILED;
uptodate = 0;
}
- cdrom_end_request(drive, uptodate);
- return ide_stopped;
} else if (!blk_pc_request(rq)) {
ide_cd_request_sense_fixup(drive, rq);
/* complain if we still have data left to transfer */
@@ -820,17 +817,16 @@
}
/* check which way to transfer data */
- if (ide_cd_check_ireason(drive, rq, len, ireason, write))
- return ide_stopped;
+ rc = ide_cd_check_ireason(drive, rq, len, ireason, write);
+ if (rc)
+ goto out_end;
if (blk_fs_request(rq)) {
if (write == 0) {
int nskip;
- if (ide_cd_check_transfer_size(drive, len)) {
- cdrom_end_request(drive, 0);
- return ide_stopped;
- }
+ if (ide_cd_check_transfer_size(drive, len))
+ goto out_end;
/*
* First, figure out if we need to bit-bucket
@@ -923,7 +919,7 @@
else
rq->data += blen;
}
- if (!write && blk_sense_request(rq))
+ if (sense && write == 0)
rq->sense_len += blen;
}
@@ -944,7 +940,7 @@
return ide_started;
out_end:
- if (blk_pc_request(rq)) {
+ if (blk_pc_request(rq) && rc == 0) {
unsigned int dlen = rq->data_len;
if (dma)
@@ -956,6 +952,8 @@
hwif->rq = NULL;
} else {
cdrom_end_request(drive, uptodate);
+ if (sense && rc == 2)
+ ide_error(drive, "request sense failure", stat);
}
return ide_stopped;
}