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From: Markus Elfring <Markus.Elfring@web.de>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	linux-pwm@vger.kernel.org
Cc: Thierry Reding <thierry.reding@gmail.com>,
	Neil Brown <neilb@suse.de>,
	Neil Armstrong <narmstrong@baylibre.com>,
	kernel@pengutronix.de, kernel-janitors@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/4] pwm: omap-dmtimer: put_device() after of_find_device_by_node()
Date: Mon, 11 Nov 2019 14:41:58 +0100
Message-ID: <812c95a0-7eb6-7ad6-16fa-c9e8339ff213@web.de> (raw)
In-Reply-To: <20191111090357.13903-3-u.kleine-koenig@pengutronix.de>

> This was found by coccicheck:
>
> 	drivers/pwm/pwm-omap-dmtimer.c:304:2-8: ERROR: missing put_device;
> 	call of_find_device_by_node on line 255, but without a corresponding
> 	object release within this function.

How do you think about to add a wording according to “imperative mood”
for your change description?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c#n151> +++ b/drivers/pwm/pwm-omap-dmtimer.c
> @@ -352,7 +352,14 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
>  	pdata->free(dm_timer);
> -put:
> +err_request_timer:
> +
> +err_timer_property:
> +err_platdata:
> +
> +	put_device(&timer_pdev->dev);

Would the use of the label “put_device” be more appropriate?


> +err_find_timer_pdev:
> +
>  	of_node_put(timer);
…

Would the use of the label “put_node” be better here?


> @@ -372,6 +379,8 @@ static int pwm_omap_dmtimer_remove(struct platform_device *pdev)
>
>  	omap->pdata->free(omap->dm_timer);
>
> +	put_device(&omap->dm_timer_pdev->dev);
> +
>  	mutex_destroy(&omap->mutex);
>
>  	return 0;

I suggest to omit a few blank lines.

Regards,
Markus

  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-09 12:26 [PATCH] pwm: omap-dmtimer: Add missing put_device() call in pwm_omap_dmtimer_probe() Markus Elfring
2019-11-11  7:19 ` Uwe Kleine-König
     [not found]   ` <20191111090357.13903-1-u.kleine-koenig@pengutronix.de>
     [not found]     ` <20191111091606.qf7gj5gln3khfnsl@pengutronix.de>
2019-11-11 13:28       ` [0/4] pwm: omap-dmtimer: Software improvements Markus Elfring
2019-11-11 13:28       ` Markus Elfring
2019-11-11 19:57         ` Uwe Kleine-König
2019-11-11 13:30     ` [PATCH 1/4] pwm: omap-dmtimer: remove pwmchip in .remove before making it unfunctional Markus Elfring
2019-11-11 20:00       ` Uwe Kleine-König
2019-11-11 21:00         ` [1/4] " Markus Elfring
     [not found]     ` <20191111090357.13903-2-u.kleine-koenig@pengutronix.de>
2019-11-11 13:32       ` [PATCH 2/4] pwm: omap-dmtimer: simplify error handling Markus Elfring
2019-11-11 20:08         ` Uwe Kleine-König
2019-11-11 21:30           ` Markus Elfring
     [not found]     ` <20191111090357.13903-3-u.kleine-koenig@pengutronix.de>
2019-11-11 13:41       ` Markus Elfring [this message]
2019-11-11 20:09         ` [PATCH 3/4] pwm: omap-dmtimer: put_device() after of_find_device_by_node() Uwe Kleine-König
2019-11-11 21:38           ` [3/4] " Markus Elfring
2019-11-11 21:46             ` Uwe Kleine-König
2019-11-12  7:40               ` Markus Elfring
     [not found]     ` <20191111090357.13903-4-u.kleine-koenig@pengutronix.de>
2019-11-11 13:47       ` [PATCH 4/4] pwm: omap-dmtimer: Allow compiling with COMPILE_TEST Markus Elfring
2019-11-11 13:47       ` Markus Elfring

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