linux-kernel - [PATCH] serial: kgdb_nmi: remove redundant initialization of variable c

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Date:   Fri, 14 May 2021 00:02:24 +0100
From:   Colin King <colin.king@...onical.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, linux-serial@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] serial: kgdb_nmi: remove redundant initialization of variable c

From: Colin Ian King <colin.king@...onical.com>

The variable c is being initialized with a value that is never
read, it is being updated later on. The assignment is redundant and
can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/tty/serial/kgdb_nmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
index db059b66438e..7e07ee915f3f 100644
--- a/drivers/tty/serial/kgdb_nmi.c
+++ b/drivers/tty/serial/kgdb_nmi.c
@@ -115,7 +115,7 @@ static void kgdb_tty_recv(int ch)
 static int kgdb_nmi_poll_one_knock(void)
 {
 	static int n;
-	int c = -1;
+	int c;
 	const char *magic = kgdb_nmi_magic;
 	size_t m = strlen(magic);
 	bool printch = false;
-- 
2.30.2