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Date:	Wed, 30 Dec 2015 12:18:44 +0100
From:	Andrzej Hajda <a.hajda@...sung.com>
To:	"James E.J. Bottomley" <JBottomley@...n.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc:	Andrzej Hajda <a.hajda@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	linux-scsi@...r.kernel.org (open list:SCSI SUBSYSTEM),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] scsi_transport_fc: remove useless check

simple_strtoul returns only non-negative values and *val is unsigned
so there is no possibility that *val is lesser than 0.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
---
 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 8a88226..ecf62d9 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -849,7 +849,7 @@ 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
-- 
1.9.1

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