linux-kernel - Re: [PATCH -next] Input: tca8418 - Remove set but not used variable ''

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Message-ID: <20190526161949.GB256861@dtor-ws>
Date:   Sun, 26 May 2019 09:19:49 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: [PATCH -next] Input: tca8418 - Remove set but not used variable
 ''

On Sat, May 25, 2019 at 10:29:21PM +0800, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> drivers/input/keyboard/tca8418_keypad.c: In function tca8418_keypad_probe:
> drivers/input/keyboard/tca8418_keypad.c:269:24: warning: variable max_keys set but not used [-Wunused-but-set-variable]
> 
> It's not used since commit 16ff7cb1848a ("Input:
> tca8418-keypad - switch to using managed resources")
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>

Applied, thank you.

> ---
>  drivers/input/keyboard/tca8418_keypad.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
> index 6da607d3b811..3bbd7e652533 100644
> --- a/drivers/input/keyboard/tca8418_keypad.c
> +++ b/drivers/input/keyboard/tca8418_keypad.c
> @@ -266,7 +266,7 @@ static int tca8418_keypad_probe(struct i2c_client *client,
>  	struct tca8418_keypad *keypad_data;
>  	struct input_dev *input;
>  	u32 rows = 0, cols = 0;
> -	int error, row_shift, max_keys;
> +	int error, row_shift;
>  	u8 reg;
>  
>  	/* Check i2c driver capabilities */
> @@ -291,7 +291,6 @@ static int tca8418_keypad_probe(struct i2c_client *client,
>  	}
>  
>  	row_shift = get_count_order(cols);
> -	max_keys = rows << row_shift;
>  
>  	/* Allocate memory for keypad_data and input device */
>  	keypad_data = devm_kzalloc(dev, sizeof(*keypad_data), GFP_KERNEL);
> -- 
> 2.17.1
> 
> 

-- 
Dmitry