linux-kernel - [PATCH 25/32] usb: early: ehci-dbgp: Remove set but never checked variable 'ret'

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Message-Id: <20200706133341.476881-26-lee.jones@linaro.org>
Date:   Mon,  6 Jul 2020 14:33:34 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Sumit Garg <sumit.garg@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        Petr Mladek <pmladek@...e.com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Yinghai Lu <yhlu.kernel@...il.com>,
        Jason Wessel <jason.wessel@...driver.com>
Subject: [PATCH 25/32] usb: early: ehci-dbgp: Remove set but never checked variable 'ret'

'ret' hasn't  been checked since the driver's inception in 2009.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’:
 drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 915 | int chunk, ret;
 | ^~~

Cc: Sumit Garg <sumit.garg@...aro.org>
Cc: Daniel Thompson <daniel.thompson@...aro.org>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Petr Mladek <pmladek@...e.com>
Cc: "Eric W. Biederman" <ebiederm@...ssion.com>
Cc: Yinghai Lu <yhlu.kernel@...il.com>
Cc: Jason Wessel <jason.wessel@...driver.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/usb/early/ehci-dbgp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 775cf70cfb3ed..b075dbfad730f 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -912,7 +912,7 @@ int __init early_dbgp_init(char *s)
 
 static void early_dbgp_write(struct console *con, const char *str, u32 n)
 {
-	int chunk, ret;
+	int chunk;
 	char buf[DBGP_MAX_PACKET];
 	int use_cr = 0;
 	u32 cmd, ctrl;
@@ -951,8 +951,8 @@ static void early_dbgp_write(struct console *con, const char *str, u32 n)
 			buf[chunk] = *str;
 		}
 		if (chunk > 0) {
-			ret = dbgp_bulk_write(USB_DEBUG_DEVNUM,
-				      dbgp_endpoint_out, buf, chunk);
+			dbgp_bulk_write(USB_DEBUG_DEVNUM,
+					dbgp_endpoint_out, buf, chunk);
 		}
 	}
 	if (unlikely(reset_run)) {
-- 
2.25.1