tree b0272cf5f64ce8e0e7ae15018e9318ac7b0ad732
parent 86b3786078d63242d3194ffc58ae8dae1d1bbef3
author Tejun Heo <[EMAIL PROTECTED]> Sun, 07 Aug 2005 14:53:40 +0900
committer Jeff Garzik <[EMAIL PROTECTED]> Wed, 10 Aug 2005 21:34:58 -0400
[PATCH] sata: fix sata_sx4 dma_prep to not use sg->length
sata_sx4 directly references sg->length to calculate total_len in
pdc20621_dma_prep(). This is incorrect as dma_map_sg() could have
merged multiple sg's into one and, in such case, sg->length doesn't
reflect true size of the entry. This patch makes it use
sg_dma_len(sg).
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
drivers/scsi/sata_sx4.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -468,7 +468,7 @@ static void pdc20621_dma_prep(struct ata
for (i = 0; i < last; i++) {
buf[idx++] = cpu_to_le32(sg_dma_address(&sg[i]));
buf[idx++] = cpu_to_le32(sg_dma_len(&sg[i]));
- total_len += sg[i].length;
+ total_len += sg_dma_len(&sg[i]);
}
buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT);
sgt_len = idx * 4;
-
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