linux-kernel - Re: [PATCH AUTOSEL 5.4 033/134] leds: an30259a: add a check for devm_regmap_init

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Date:   Sat, 14 Dec 2019 09:42:58 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Chuhong Yuan <hslester96@...il.com>, linux-leds@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.4 033/134] leds: an30259a: add a check for
 devm_regmap_init_i2c

On Wed 2019-12-11 10:10:09, Sasha Levin wrote:
> From: Chuhong Yuan <hslester96@...il.com>
> 
> [ Upstream commit fc7b5028f2627133c7c18734715a08829eab4d1f ]
> 
> an30259a_probe misses a check for devm_regmap_init_i2c and may cause
> problems.
> Add a check and print errors like other leds drivers.

Please drop.
								Pavel

> Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> Signed-off-by: Pavel Machek <pavel@....cz>
> Signed-off-by: Sasha Levin <sashal@...nel.org>
> ---
>  drivers/leds/leds-an30259a.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
> index 250dc9d6f6350..82350a28a5644 100644
> --- a/drivers/leds/leds-an30259a.c
> +++ b/drivers/leds/leds-an30259a.c
> @@ -305,6 +305,13 @@ static int an30259a_probe(struct i2c_client *client)
>  
>  	chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
>  
> +	if (IS_ERR(chip->regmap)) {
> +		err = PTR_ERR(chip->regmap);
> +		dev_err(&client->dev, "Failed to allocate register map: %d\n",
> +			err);
> +		goto exit;
> +	}
> +
>  	for (i = 0; i < chip->num_leds; i++) {
>  		struct led_init_data init_data = {};
>  
> -- 
> 2.20.1

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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