From: Mark Rutland <mark.rutland@arm.com>
To: "Heiko Stübner" <heiko@sntech.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
Pawel Moll <Pawel.Moll@arm.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"rtc-linux@googlegroups.com" <rtc-linux@googlegroups.com>,
Mike Turquette <mturquette@linaro.org>
Subject: Re: [PATCH 2/2] rtc: add hym8563 rtc-driver
Date: Mon, 25 Nov 2013 12:01:25 +0000 [thread overview]
Message-ID: <20131125120125.GD32081@e106331-lin.cambridge.arm.com> (raw)
In-Reply-To: <201311222255.48943.heiko@sntech.de>
[...]
> +static int hym8563_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct hym8563 *hym8563;
> + int ret, gpio_int;
> +
> + hym8563 = devm_kzalloc(&client->dev, sizeof(hym8563), GFP_KERNEL);
> + if (!hym8563)
> + return -ENOMEM;
> +
> + hym8563->client = client;
> + i2c_set_clientdata(client, hym8563);
> +
> + device_set_wakeup_capable(&client->dev, true);
> +
> + gpio_int = of_get_gpio(client->dev.of_node, 0);
> + if (!gpio_is_valid(gpio_int)) {
> + dev_err(&client->dev, "failed to get interrupt gpio\n");
> + return -EINVAL;
> + }
> +
> + ret = devm_gpio_request_one(&client->dev, gpio_int,
> + GPIOF_DIR_IN, "hym8563_int");
> + if (ret) {
> + dev_err(&client->dev, "request of gpio %d failed, %d\n",
> + gpio_int, ret);
> + return ret;
> + }
>From here on the gpio is never used or even stashed away anywhere.
What's the point in requesting it and then leaking it?
Thanks,
Mark.
next prev parent reply other threads:[~2013-11-25 12:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-22 21:54 [PATCH 0/2] Add support for hym8563 rtcs Heiko Stübner
2013-11-22 21:55 ` [PATCH 1/2] dt-bindings: add hym8563 binding Heiko Stübner
2013-11-25 11:50 ` Mark Rutland
2013-11-22 21:55 ` [PATCH 2/2] rtc: add hym8563 rtc-driver Heiko Stübner
2013-11-25 12:01 ` Mark Rutland [this message]
2013-11-25 23:40 ` Heiko Stübner
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