diff options
| -rw-r--r-- | drivers/ata/pata_legacy.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index c3e6592712c4..0a8bf09a5c19 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -352,7 +352,8 @@ static unsigned int pdc_data_xfer_vlb(struct ata_queued_cmd *qc, iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); if (unlikely(slop)) { - __le32 pad; + __le32 pad = 0; + if (rw == READ) { pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr)); memcpy(buf + buflen - slop, &pad, slop); @@ -742,7 +743,8 @@ static unsigned int vlb32_data_xfer(struct ata_queued_cmd *qc, ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); if (unlikely(slop)) { - __le32 pad; + __le32 pad = 0; + if (rw == WRITE) { memcpy(&pad, buf + buflen - slop, slop); iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); |