libata: fix a typo in comment

poitner -> pointer.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 3d4887d..c2adfd8 100644 (file)
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2990,7 +2990,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
         * This inconsistency confuses several controllers which
         * perform PIO using DMA such as Intel AHCIs and sil3124/32.
         * These controllers use actual number of transferred bytes to
-        * update DMA poitner and transfer of 4n+2 bytes make those
+        * update DMA pointer and transfer of 4n+2 bytes make those
         * controller push DMA pointer by 4n+4 bytes because SATA data
         * FISes are aligned to 4 bytes.  This causes data corruption
         * and buffer overrun.