linux-kernel - Re: [PATCH 5/5] gpio: move gpio_ensure

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Message-ID: <53CE2126.9000804@gmail.com>
Date:	Tue, 22 Jul 2014 14:00:30 +0530
From:	Varka Bhadram <varkabhadram@...il.com>
To:	Alexandre Courbot <acourbot@...dia.com>,
	Linus Walleij <linus.walleij@...aro.org>
CC:	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	gnurou@...il.com
Subject: Re: [PATCH 5/5] gpio: move gpio_ensure_requested() into legacy C
 file

On 07/22/2014 12:47 PM, Alexandre Courbot wrote:

(...)

> +	if (WARN(test_and_set_bit(FLAG_REQUESTED, &desc->flags) == 0,
> +			"autorequest GPIO-%d\n", desc_to_gpio(desc))) {
> +		if (!try_module_get(chip->owner)) {
> +			gpiod_err(desc, "%s: module can't be gotten\n",
> +					__func__);

Should match open parenthesis '('

	gpiod_err(desc, "%s: module can't be gotten\n",
		  __func__);

> +			clear_bit(FLAG_REQUESTED, &desc->flags);
> +			/* lose */
> +			err = -EIO;
> +			goto end;
> +		}
> +		desc->label = "[auto]";
> +		/* caller must chip->request() w/o spinlock */
> +		if (chip->request)
> +			request = true;
> +	}
> +
> +end:
> +	spin_unlock_irqrestore(&gpio_lock, flags);
> +
> +	if (request) {
> +		might_sleep_if(chip->can_sleep);
> +		err = chip->request(chip, gpio_chip_hwgpio(desc));
> +
> +		if (err < 0) {
> +			gpiod_dbg(desc, "%s: chip request fail, %d\n",
> +					__func__, err);

Dto..

(...)


-- 
Regards,
Varka Bhadram.

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