linux-kernel - [PATCH][next] comedi: remove redundant assignment to variable range

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Date: Mon,  5 Feb 2024 18:04:36 +0000
From: Colin Ian King <colin.i.king@...il.com>
To: Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] comedi: remove redundant assignment to variable range

The variable range is being initialized with a value that is never
read, it is being re-assigned later on. The initialization is
redundant and can be removed.

Cleans up clang scan build warning:
drivers/comedi/drivers/das08.c:180:2: warning: Value stored
to 'range' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/comedi/drivers/das08.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/comedi/drivers/das08.c b/drivers/comedi/drivers/das08.c
index 5d5b9174f88a..49944ce1f813 100644
--- a/drivers/comedi/drivers/das08.c
+++ b/drivers/comedi/drivers/das08.c
@@ -177,7 +177,6 @@ static int das08_ai_insn_read(struct comedi_device *dev,
 	int ret;
 
 	chan = CR_CHAN(insn->chanspec);
-	range = CR_RANGE(insn->chanspec);
 
 	/* clear crap */
 	inb(dev->iobase + DAS08_AI_LSB_REG);
-- 
2.39.2