Commit d49d1c76 authored Oct 08, 2019 by zhengbin Committed by Greg Kroah-Hartman Oct 08, 2019

staging: comedi: Remove set but not used variable 'aref'



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

drivers/staging/comedi/drivers/dt3000.c: In function dt3k_ai_insn_read:
drivers/staging/comedi/drivers/dt3000.c:511:27: warning: variable aref set but not used [-Wunused-but-set-variable]

It is not used since commit 2e310235 ("staging:
comedi: dt3000: rename dt3k_ai_insn()")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/1570520515-2186-7-git-send-email-zhengbin13@huawei.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 82d20bc5

drivers/staging/comedi/drivers/dt3000.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -508,12 +508,11 @@ static int dt3k_ai_insn_read(struct comedi_device *dev,
		unsigned int *data)
		{
		int i;
		unsigned int chan, gain, aref;
		unsigned int chan, gain;

		chan = CR_CHAN(insn->chanspec);
		gain = CR_RANGE(insn->chanspec);
		/* XXX docs don't explain how to select aref */
		aref = CR_AREF(insn->chanspec);

		for (i = 0; i < insn->n; i++)
		data[i] = dt3k_readsingle(dev, DPR_SUBSYS_AI, chan, gain);

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