linux-kernel - [PATCH] usb: atm: cxacru: remove impossible condition

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Date:   Fri, 16 Dec 2016 22:15:04 +0000
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH] usb: atm: cxacru: remove impossible condition

The variable index is unsigned and so it can never be less than 0.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
---
 drivers/usb/atm/cxacru.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index f9fe86b6..d65a64c 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -474,7 +474,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
 		ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
 		if (ret < 2)
 			return -EINVAL;
-		if (index < 0 || index > 0x7f)
+		if (index > 0x7f)
 			return -EINVAL;
 		if (tmp < 0 || tmp > len - pos)
 			return -EINVAL;
-- 
1.9.1