linux-kernel - Re: [PATCH V3 2/2] regmap: add regmap_bulk

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Message-ID: <20120211214754.GF31887@opensource.wolfsonmicro.com>
Date:	Sat, 11 Feb 2012 21:47:55 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	gregkh@...uxfoundation.org, lars@...afoo.de,
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH V3 2/2] regmap: add regmap_bulk_write() for register write

On Fri, Feb 10, 2012 at 09:30:28PM +0530, Laxman Dewangan wrote:

> +		/* No formatting is require if val_byte is 1 */
> +		if (val_bytes == 1)
> +			wval = (void *)val;
> +		else {

Please don't combine branches with and without braces.

> +			wval = kmemdup(val, val_count * val_bytes, GFP_KERNEL);
> +			if (!wval) {
> +				mutex_unlock(&map->lock);
> +				dev_err(map->dev,
> +					"Error in memory allocation\n");
> +				return -ENOMEM;

As a style thing a goto error pattern is clearer for stuff like this -
there's so many branches that it's complex to keep track of the
unwinding.

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