linux-kernel - Re: [PATCH v2 1/3] drivers: of: add return value to of_reserved_mem_device

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Date:	Fri, 26 Sep 2014 22:13:31 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	linux-kernel@...r.kernel.org, Laura Abbott <lauraa@...eaurora.org>,
	Josh Cartwright <joshc@...eaurora.org>,
	Michal Nazarewicz <mina86@...a86.com>,
	linaro-mm-sig@...ts.linaro.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Grant Likely <grant.likely@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH v2 1/3] drivers: of: add return value to of_reserved_mem_device_init

On Thursday 11 September 2014, Marek Szyprowski wrote:
> -void of_reserved_mem_device_init(struct device *dev)
> +int of_reserved_mem_device_init(struct device *dev)
>  {
>         struct reserved_mem *rmem;
>         struct device_node *np;
> @@ -260,6 +260,7 @@ void of_reserved_mem_device_init(struct device *dev)
>  
>         rmem->ops->device_init(rmem, dev);
>         dev_info(dev, "assigned reserved memory node %s\n", rmem->name);
> +       return 0;
>  }

This function has two other 'return' statements that now are missing 
a return value for the error case and cause undefined behavior
in the caller.

	Arnd
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