[PATCH 48/63] ide-cd: unify request end exit path in cdrom_pc_intr()

From: Bartlomiej Zolnierkiewicz
Date: Wed Dec 19 2007 - 20:44:09 EST



This is a preparation for cdrom_pc_intr() and cdrom_newpc_intr() merge.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
+10 bytes
drivers/ide/ide-cd.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)

Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1066,7 +1066,7 @@ static ide_startstop_t cdrom_pc_intr (id
{
struct request *rq = HWGROUP(drive)->rq;
xfer_func_t *xferfunc = NULL;
- int stat, ireason, len, thislen, write;
+ int stat, ireason, len, thislen, write, update;
u8 lowcyl = 0, highcyl = 0;

/* Check for errors. */
@@ -1084,14 +1084,8 @@ static ide_startstop_t cdrom_pc_intr (id
Complain if we still have data left to transfer. */
if ((stat & DRQ_STAT) == 0) {
ide_cd_request_sense_fixup(rq);
-
- if (rq->data_len == 0)
- cdrom_end_request(drive, 1);
- else {
- rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
- }
- return ide_stopped;
+ update = rq->data_len ? 0 : 1;
+ goto end_request;
}

/* Figure out how much data to transfer. */
@@ -1130,9 +1124,8 @@ static ide_startstop_t cdrom_pc_intr (id
"appears confused (ireason = 0x%02x). "
"Trying to recover by ending request.\n",
drive->name, ireason);
- rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
- return ide_stopped;
+ update = 0;
+ goto end_request;
}
pad:
/*
@@ -1145,6 +1138,12 @@ pad:
/* Now we wait for another interrupt. */
ide_set_handler(drive, &cdrom_pc_intr, ATAPI_WAIT_PC, cdrom_timer_expiry);
return ide_started;
+
+end_request:
+ if (!update)
+ rq->cmd_flags |= REQ_FAILED;
+ cdrom_end_request(drive, update);
+ return ide_stopped;
}

static ide_startstop_t cdrom_do_pc_continuation (ide_drive_t *drive)
--
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