linux-kernel - [PATCH v5 03/10] tty: n_gsm: remove unneeded initialization of ret in gsm_dlci

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Date:   Wed, 17 May 2023 17:56:57 +0200
From:   "D. Starke" <daniel.starke@...mens.com>
To:     linux-serial@...r.kernel.org, gregkh@...uxfoundation.org,
        jirislaby@...nel.org, ilpo.jarvinen@...ux.intel.com,
        felix-haase@...mens.com
Cc:     linux-kernel@...r.kernel.org,
        Daniel Starke <daniel.starke@...mens.com>
Subject: [PATCH v5 03/10] tty: n_gsm: remove unneeded initialization of ret in gsm_dlci_config

From: Daniel Starke <daniel.starke@...mens.com>

The variable 'ret' is not used before assignment from gsm_activate_mux().
Still it gets initialized to zero at declaration.

Fix this as remarked in the link below by moving the declaration to the
first assignment.

Link: https://lore.kernel.org/all/b42bc4d1-cc9d-d115-c981-aaa053bdc59f@kernel.org/

Signed-off-by: Daniel Starke <daniel.starke@...mens.com>
---
 drivers/tty/n_gsm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

v4 -> v5:
No changes.

Please note that I cannot response to emails until August 7th. Felix Haase
will take over from our side for questions regarding this patch series or
the n_gsm.

Link: https://lore.kernel.org/all/20230426080315.7595-3-daniel.starke@siemens.com/

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 66edcf65a4dd..ebb71957f783 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -3277,7 +3277,6 @@ static void gsm_copy_config_values(struct gsm_mux *gsm,
 
 static int gsm_config(struct gsm_mux *gsm, struct gsm_config *c)
 {
-	int ret = 0;
 	int need_close = 0;
 	int need_restart = 0;
 
@@ -3356,7 +3355,7 @@ static int gsm_config(struct gsm_mux *gsm, struct gsm_config *c)
 	 * and removing from the mux array
 	 */
 	if (gsm->dead) {
-		ret = gsm_activate_mux(gsm);
+		int ret = gsm_activate_mux(gsm);
 		if (ret)
 			return ret;
 		if (gsm->initiator)
-- 
2.34.1