Am 27.06.2012 11:00, schrieb Dan Carpenter:
> scsi_dma_map() returns -ENOMEM on error.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> Originally sent on Tue, 20 Sep 2011.
>
> diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
> index 374c4ed..b2c3a1a 100644
> --- a/drivers/scsi/advansys.c
> +++ b/drivers/scsi/advansys.c
> @@ -8426,6 +8426,12 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
>
> /* Build ASC_SCSI_Q */
> use_sg = scsi_dma_map(scp);
> + if (use_sg < 0) {
> + scsi_dma_unmap(scp);
> + scp->result = HOST_BYTE(DID_SOFT_ERROR);
> + return ASC_ERROR;
> + }
> +
> if (use_sg != 0) {
> int sgcnt;
> struct scatterlist *slp;
Q:if use_sg == 0 a special case ?
re,
wh
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