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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-12-29 22:27:29 +0300
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-12-29 22:27:29 +0300
commitf26f6ceacaaf017a677138cbca7ab076b565ca87 (patch)
tree78c9fd0109fa87c9090013ec649324fe7dfa7e35 /drivers/ide/tx4938ide.c
parenta0fce792b55b260589c3d77293a224e84395ec07 (diff)
downloadlinux-f26f6ceacaaf017a677138cbca7ab076b565ca87.tar.xz
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/tx4938ide.c')
-rw-r--r--drivers/ide/tx4938ide.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index 9120063e8f87..13b63e7fa353 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -181,7 +181,7 @@ static void tx4938ide_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 tx4938ide_output_data_swap(ide_drive_t *drive, struct request *rq,
@@ -195,7 +195,7 @@ static void tx4938ide_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 tx4938ide_tp_ops = {