On 06/09/2010 08:01 AM, Dan Carpenter wrote:
cb->atapi.cdb is an array of 16 u8 elements. The call too memset() would set the first part of the sge array to zero as well. It's not a packed struct. This one has been around for five years. I found it with Smatch. I think the reason no one has seen it before is because we normally call sil24_fill_sg() and that overwrites sge with proper information? Signed-off-by: Dan Carpenter<error27@xxxxxxxxx> --- I don't have this hardware myself so I can't test it. Sorry. :( diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index e925051..9e459eb 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -865,7 +865,7 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc) } else { prb =&cb->atapi.prb; sge = cb->atapi.sge; - memset(cb->atapi.cdb, 0, 32); + memset(cb->atapi.cdb, 0, sizeof(cb->atapi.cdb)); memcpy(cb->atapi.cdb, qc->cdb, qc->dev->cdb_len);
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