From: Dan Murphy <dmurphy@ti.com>
To: "Guido Günther" <agx@sigxcpu.org>,
"Jacek Anaszewski" <jacek.anaszewski@gmail.com>,
"Pavel Machek" <pavel@ucw.cz>,
linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] leds: lm3692x: Handle failure to probe the regulator
Date: Wed, 18 Sep 2019 13:41:23 -0500 [thread overview]
Message-ID: <4bde1b54-bdc5-8aa8-d10b-0cc131ef7673@ti.com> (raw)
In-Reply-To: <8491e5df20f4672a242c9072f58c243291cfe752.1568772964.git.agx@sigxcpu.org>
Guido
On 9/17/19 9:19 PM, Guido Günther wrote:
> Instead use devm_regulator_get_optional since the regulator
> is optional and check for errors.
>
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
> drivers/leds/leds-lm3692x.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
> index f394669ad8f2..9972c932d51e 100644
> --- a/drivers/leds/leds-lm3692x.c
> +++ b/drivers/leds/leds-lm3692x.c
> @@ -333,9 +333,14 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
> return ret;
> }
>
> - led->regulator = devm_regulator_get(&led->client->dev, "vled");
> - if (IS_ERR(led->regulator))
> - led->regulator = NULL;
> + led->regulator = devm_regulator_get_optional(&led->client->dev, "vled");
> + if (IS_ERR(led->regulator)) {
> + ret = PTR_ERR(led->regulator);
> + if (ret != -EPROBE_DEFER)
> + dev_err(&led->client->dev,
> + "Failed to get vled regulator: %d\n", ret);
nitpick. Add a new line for readability
> + return ret;
> + }
If the regulator is not set then led->regulator should be set to NULL.
Dan
>
> child = device_get_next_child_node(&led->client->dev, child);
> if (!child) {
next prev parent reply other threads:[~2019-09-18 18:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-18 2:19 [PATCH 0/5] leds: lm3692x: Probing and flag fixes Guido Günther
2019-09-18 2:19 ` [PATCH 1/5] leds: lm3692x: Print error value on dev_err Guido Günther
2019-09-18 18:23 ` Dan Murphy
2019-09-18 2:19 ` [PATCH 2/5] leds: lm3692x: Don't overwrite return value in error path Guido Günther
2019-09-18 18:33 ` Dan Murphy
2019-09-19 10:57 ` Pavel Machek
2019-09-18 2:19 ` [PATCH 3/5] leds: lm3692x: Handle failure to probe the regulator Guido Günther
2019-09-18 18:41 ` Dan Murphy [this message]
2019-09-18 2:19 ` [PATCH 4/5] leds: lm3692x: Use flags from LM3692X_BOOST_CTRL Guido Günther
2019-09-18 18:46 ` Dan Murphy
2019-09-18 2:19 ` [PATCH 5/5] leds: lm3692x: Use flags from LM3692X_BRT_CTRL Guido Günther
2019-09-18 18:48 ` Dan Murphy
2019-09-19 9:54 ` [PATCH 0/5] leds: lm3692x: Probing and flag fixes Pavel Machek
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