linux-kernel - [PATCH] Staging: comedi: dt2815: remove set but not used variable 'hi'

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Message-ID: <1586264372-15872-1-git-send-email-wanghai38@huawei.com>
Date:   Tue, 7 Apr 2020 08:59:32 -0400
From:   Wang Hai <wanghai38@...wei.com>
To:     <abbotti@....co.uk>, <hsweeten@...ionengravers.com>,
        <gregkh@...uxfoundation.org>
CC:     <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
        <wanghai38@...wei.com>
Subject: [PATCH] Staging: comedi: dt2815: remove set but not used variable 'hi'

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

drivers/staging/comedi/drivers/dt2815.c: In function dt2815_ao_insn:
drivers/staging/comedi/drivers/dt2815.c:91:19: warning: variable 'hi' set but not used [-Wunused-but-set-variable]

commit d6a929b7608a ("Staging: comedi: add dt2815 driver")
involved this, remove it.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/staging/comedi/drivers/dt2815.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index 83026ba..bcf85ec 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -88,12 +88,11 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 	struct dt2815_private *devpriv = dev->private;
 	int i;
 	int chan = CR_CHAN(insn->chanspec);
-	unsigned int lo, hi;
+	unsigned int lo;
 	int ret;
 
 	for (i = 0; i < insn->n; i++) {
 		lo = ((data[i] & 0x0f) << 4) | (chan << 1) | 0x01;
-		hi = (data[i] & 0xff0) >> 4;
 
 		ret = comedi_timeout(dev, s, insn, dt2815_ao_status, 0x00);
 		if (ret)
-- 
1.8.3.1