[PATCH] scsi_transport_fc: remove useless check
From: Andrzej Hajda
Date: Wed Dec 30 2015 - 06:19:36 EST
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@xxxxxxxxxxx>
---
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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