linux-kernel - [PATCH] tty: tty_ldisc: Remove the ret variable

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Message-Id: <20230222202303.3195-1-zeming@nfschina.com>
Date:   Thu, 23 Feb 2023 04:23:03 +0800
From:   Li zeming <zeming@...china.com>
To:     gregkh@...uxfoundation.org, jirislaby@...nel.org
Cc:     linux-kernel@...r.kernel.org, Li zeming <zeming@...china.com>
Subject: [PATCH] tty: tty_ldisc: Remove the ret variable

The int variable ret does not receive the return value in this function.
It should be removed and returned 0 directly.

Signed-off-by: Li zeming <zeming@...china.com>
---
 drivers/tty/tty_ldisc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index e758f44729e7..3f68e213df1f 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -58,7 +58,6 @@ static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS];
 int tty_register_ldisc(struct tty_ldisc_ops *new_ldisc)
 {
 	unsigned long flags;
-	int ret = 0;
 
 	if (new_ldisc->num < N_TTY || new_ldisc->num >= NR_LDISCS)
 		return -EINVAL;
@@ -67,7 +66,7 @@ int tty_register_ldisc(struct tty_ldisc_ops *new_ldisc)
 	tty_ldiscs[new_ldisc->num] = new_ldisc;
 	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(tty_register_ldisc);
 
-- 
2.18.2