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| author |   Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-12-29 20:27:29 +0100 |
|---|---|---|
| committer |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-12-29 20:27:29 +0100 |
| commit | f26f6ceacaaf017a677138cbca7ab076b565ca87 (patch) | |
| tree | 78c9fd0109fa87c9090013ec649324fe7dfa7e35 /drivers/ide/tx4939ide.c | |
| parent | tx4939ide: Do not use zero count PRD entry (diff) | |
| download | linux-dev-f26f6ceacaaf017a677138cbca7ab076b565ca87.tar.xz linux-dev-f26f6ceacaaf017a677138cbca7ab076b565ca87.zip | |
tx493[89]ide: Fix length for __ide_flush_dcache_range
This fixes data corruption on PIO mode.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: stable <stable@kernel.org>
Cc: sshtylyov@ru.mvista.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/tx4939ide.c')
| -rw-r--r-- | drivers/ide/tx4939ide.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c index 30d0d256230f..97cd9e0f66f6 100644 --- a/drivers/ide/tx4939ide.c +++ b/drivers/ide/tx4939ide.c @@ -564,7 +564,7 @@ static void tx4939ide_input_data_swap(ide_drive_t *drive, struct request *rq, while (count--) *ptr++ = cpu_to_le16(__raw_readw((void __iomem *)port)); - __ide_flush_dcache_range((unsigned long)buf, count * 2); + __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); } static void tx4939ide_output_data_swap(ide_drive_t *drive, struct request *rq, @@ -578,7 +578,7 @@ static void tx4939ide_output_data_swap(ide_drive_t *drive, struct request *rq, __raw_writew(le16_to_cpu(*ptr), (void __iomem *)port); ptr++; } - __ide_flush_dcache_range((unsigned long)buf, count * 2); + __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); } static const struct ide_tp_ops tx4939ide_tp_ops = { |