linux-kernel - [PATCH] char: pcmcia: remove set but not used variable 'tmp'

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Message-ID: <20210514062150.3533786-1-yukuai3@huawei.com>
Date:   Fri, 14 May 2021 14:21:50 +0800
From:   Yu Kuai <yukuai3@...wei.com>
To:     <laforge@...monks.org>, <arnd@...db.de>,
        <gregkh@...uxfoundation.org>, <akpm@...l.org>
CC:     <linux-kernel@...r.kernel.org>, <yukuai3@...wei.com>,
        <yi.zhang@...wei.com>
Subject: [PATCH] char: pcmcia: remove set but not used variable 'tmp'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/char/pcmcia/cm4000_cs.c:1053:16: warning: variable ‘tmp’
set but not used [-Wunused-but-set-variable]

It is never used and so can be removed.

Fixes: c1986ee9bea3 ("[PATCH] New Omnikey Cardman 4000 driver")
Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
 drivers/char/pcmcia/cm4000_cs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 89681f07bc78..9ec25735425d 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1050,7 +1050,6 @@ static ssize_t cmm_write(struct file *filp, const char __user *buf,
 	struct cm4000_dev *dev = filp->private_data;
 	unsigned int iobase = dev->p_dev->resource[0]->start;
 	unsigned short s;
-	unsigned char tmp;
 	unsigned char infolen;
 	unsigned char sendT0;
 	unsigned short nsend;
@@ -1148,7 +1147,7 @@ static ssize_t cmm_write(struct file *filp, const char __user *buf,
 	set_cardparameter(dev);
 
 	/* dummy read, reset flag procedure received */
-	tmp = inb(REG_FLAGS1(iobase));
+	inb(REG_FLAGS1(iobase));
 
 	dev->flags1 = 0x20	/* T_Active */
 	    | (sendT0)
-- 
2.25.4