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ide-disk: set_addressing() fixes 

* Return -EIO if arg > 0 and LBA48 is unsupported.

* No need to reset ->addressing.

* Make ->addressing a single bit flag.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-10-13 21:39:36 +02:00
parent 1ea1031cf9
commit 35c1375312
2 changed files with 6 additions and 7 deletions
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11
drivers/ide/ide-disk.c
View File

@ -686,14 +686,13 @@ static int set_addressing(ide_drive_t *drive, int arg)
if (arg < 0 || arg > 2)
return -EINVAL;
drive->addressing = 0;
if (drive->hwif->host_flags & IDE_HFLAG_NO_LBA48)
return 0;
if (ata_id_lba48_enabled(drive->id) == 0)
if (arg && ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
ata_id_lba48_enabled(drive->id) == 0))
return -EIO;
if (arg == 2)
arg = 0;
drive->addressing = arg;
return 0;

2
include/linux/ide.h
View File

@ -509,7 +509,7 @@ struct ide_drive_s {
unsigned sleeping : 1; /* 1=sleeping & sleep field valid */
unsigned post_reset : 1;
unsigned udma33_warned : 1;
unsigned addressing : 2; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */
unsigned addressing : 1; /* 0=28-bit, 1=48-bit */
unsigned wcache : 1; /* status of write cache */
unsigned nowerr : 1; /* used for ignoring ATA_DF */