From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tyrel Datwyler Date: Mon, 17 Apr 2017 18:53:02 +0000 Subject: Re: [PATCH] scsi: fc: remove redundant check of an unsigned long being less than zero Message-Id: List-Id: References: <20170414135802.6991-1-colin.king@canonical.com> In-Reply-To: <20170414135802.6991-1-colin.king@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Colin King , "James E . J . Bottomley" , "Martin K . Petersen" , linux-scsi@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org On 04/14/2017 06:58 AM, Colin King wrote: > From: Colin Ian King > > The check for an unsigned long being less than zero is always false > so it is a redundant check and can be removed. > > Detected by static analysis with by PVS-Studio > > Signed-off-by: Colin Ian King Reviewed-by: Tyrel Datwyler > --- > drivers/scsi/scsi_transport_fc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c > index 2d753c93e07a..87b8f9d64d9b 100644 > --- a/drivers/scsi/scsi_transport_fc.c > +++ b/drivers/scsi/scsi_transport_fc.c > @@ -850,7 +850,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val) > char *cp; > > *val = simple_strtoul(buf, &cp, 0); > - if ((*cp && (*cp != '\n')) || (*val < 0)) > + if (*cp && (*cp != '\n')) > return -EINVAL; > /* > * Check for overflow; dev_loss_tmo is u32 >