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ide-cd: fix "missing data" handling in cdrom_pc_intr()

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If drive still wants to transfer the data we need to pad the transfer
instead of just finishing the request.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-02-01 23:09:17 +01:00
parent 5a5222d9fa
commit f1071e628b
1 changed files with 4 additions and 3 deletions
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7
drivers/ide/ide-cd.c
View file

@ -1500,9 +1500,11 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
if (xferfunc) {
if (!rq->data) {
printk(KERN_ERR "%s: confused, missing data\n",
drive->name);
blk_dump_rq_flags(rq, write ? "cdrom_pc_intr, write"
: "cdrom_pc_intr, read");
goto confused;
goto pad;
}
/* Transfer the data. */
xferfunc(drive, rq->data, thislen);
@ -1515,7 +1517,6 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
if (write && blk_sense_request(rq))
rq->sense_len += thislen;
} else {
confused:
printk (KERN_ERR "%s: cdrom_pc_intr: The drive "
"appears confused (ireason = 0x%02x). "
"Trying to recover by ending request.\n",
@ -1524,7 +1525,7 @@ confused:
cdrom_end_request(drive, 0);
return ide_stopped;
}
pad:
/*
* If we haven't moved enough data to satisfy the drive,
* add some padding.