Re: [PATCH][scsi-next] scsi: qla2xxx: remove redundant null check on tgt

From: Madhani, Himanshu
Date: Wed Jun 07 2017 - 18:42:13 EST



> On Jun 5, 2017, at 10:29 AM, Colin King <colin.king@xxxxxxxxxxxxx> wrote:
>
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> An earlier commit ed7fb808477b846bb2 ("scsi: qla2xxx: Remove
> redundant wait when target is stopped.") removed a null check
> on ha->tgt.tgt_ops and replaced it with a new check that null
> checked tgt, thus making the subsequent null check on tgt
> totally redundant. Remove it.
>
> Detected by CoverityScan, CID#1440452 ("Logically Dead Code")
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/scsi/qla2xxx/qla_target.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
> index cb33ca87ca37..3594a76f6155 100644
> --- a/drivers/scsi/qla2xxx/qla_target.c
> +++ b/drivers/scsi/qla2xxx/qla_target.c
> @@ -5519,12 +5519,6 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
> if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
> return;
>
> - if (unlikely(tgt == NULL)) {
> - ql_dbg(ql_dbg_tgt, vha, 0xe03a,
> - "ASYNC EVENT %#x, but no tgt (ha %p)\n", code, ha);
> - return;
> - }
> -
> if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
> IS_QLA2100(ha))
> return;
> --
> 2.11.0
>

Looks good.

Acked-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>

Thanks,
- Himanshu