linux-kernel - [PATCH][next] serial: lpc32xx_hs: remove redundant check and assignment of hsu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Thu, 15 Feb 2024 23:29:44 +0000
From: Colin Ian King <colin.i.king@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Vladimir Zapolskiy <vz@...ia.com>,
	linux-serial@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] serial: lpc32xx_hs: remove redundant check and assignment of hsu_rate

Variable hsu_rate is being checked for an upper limit and is assigned
a value that is never read. The if statement and assignment are
redundant and can be removed.

Cleans up clang scan build warning:
drivers/tty/serial/lpc32xx_hs.c:237:3: warning: Value stored
to 'hsu_rate' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/tty/serial/lpc32xx_hs.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index ec20329f0603..269efc5e2d51 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -233,8 +233,6 @@ static unsigned int __serial_get_clock_div(unsigned long uartclk,
 
 		hsu_rate++;
 	}
-	if (hsu_rate > 0xFF)
-		hsu_rate = 0xFF;
 
 	return goodrate;
 }
-- 
2.39.2