linux-kernel - Re: [PATCH v2 2/2] btrfs: reada: Fix returned errno code

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Message-ID: <20150925104056.GD11442@twin.jikos.cz>
Date:	Fri, 25 Sep 2015 12:40:56 +0200
From:	David Sterba <dsterba@...e.cz>
To:	Luis de Bethencourt <luisbg@....samsung.com>
Cc:	linux-kernel@...r.kernel.org, clm@...com, jbacik@...com,
	dsterba@...e.com, linux-btrfs@...r.kernel.org
Subject: Re: [PATCH v2 2/2] btrfs: reada: Fix returned errno code

On Thu, Sep 24, 2015 at 08:13:33PM +0100, Luis de Bethencourt wrote:
> reada is using -1 instead of the -ENOMEM defined macro to specify that
> a buffer allocation failed. Since the error number is propagated, the
> caller will get a -EPERM which is the wrong error condition.
> 
> Also, updating the caller to return the exact value from
> reada_add_block.
> 
> Smatch tool warning:
> reada_add_block() warn: returning -1 instead of -ENOMEM is sloppy
> 
> Signed-off-by: Luis de Bethencourt <luisbg@....samsung.com>

Reviewed-by: David Sterba <dsterba@...e.com>
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