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.ha...@samsung.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 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
