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IDE: Report errors during drive reset back to user space

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Make sure that each error condition during the execution of an
HDIO_DRIVE_RESET ioctl is actually reported to the calling process.
Also, unify the exit path of reset_pollfunc() when returning ide_stopped
since the need of ->port_ops->reset_poll() to be treated specially has
vanished (way back, it seems).

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Elias Oltmanns
2008-07-16 20:33:48 +02:00
committed by Bartlomiej Zolnierkiewicz
parent bb7ee9b1ec
commit 64a8f00ff1
4 changed files with 20 additions and 13 deletions
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18
drivers/ide/ide-iops.c
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@@ -905,12 +905,12 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
static inline void ide_complete_drive_reset(ide_drive_t *drive)
static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
{
struct request *rq = drive->hwif->hwgroup->rq;
if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
ide_end_request(drive, 1, 0);
ide_end_request(drive, err ? err : 1, 0);
}
/* needed below */
@@ -948,7 +948,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
}
/* done polling */
hwgroup->polling = 0;
ide_complete_drive_reset(drive);
ide_complete_drive_reset(drive, 0);
return ide_stopped;
}
@@ -964,9 +964,11 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
ide_hwif_t *hwif = HWIF(drive);
const struct ide_port_ops *port_ops = hwif->port_ops;
u8 tmp;
int err = 0;
if (port_ops && port_ops->reset_poll) {
if (port_ops->reset_poll(drive)) {
err = port_ops->reset_poll(drive);
if (err) {
printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
hwif->name, drive->name);
goto out;
@@ -983,6 +985,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
}
printk("%s: reset timed-out, status=0x%02x\n", hwif->name, tmp);
drive->failures++;
err = -EIO;
} else {
printk("%s: reset: ", hwif->name);
tmp = ide_read_error(drive);
@@ -1009,11 +1012,12 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
if (tmp & 0x80)
printk("; slave: failed");
printk("\n");
err = -EIO;
}
}
hwgroup->polling = 0; /* done polling */
out:
ide_complete_drive_reset(drive);
hwgroup->polling = 0; /* done polling */
ide_complete_drive_reset(drive, err);
return ide_stopped;
}
@@ -1120,7 +1124,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
if (io_ports->ctl_addr == 0) {
spin_unlock_irqrestore(&ide_lock, flags);
ide_complete_drive_reset(drive);
ide_complete_drive_reset(drive, -ENXIO);
return ide_stopped;
}