linux-kernel - Re: [PATCH] reset: Fix of_reset_control

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Date:	Wed, 02 Sep 2015 17:09:52 +0200
From:	Philipp Zabel <p.zabel@...gutronix.de>
To:	Alban Bedel <albeu@...e.fr>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] reset: Fix of_reset_control_get() for consistent return
 values

Hi Alban,

Am Dienstag, den 01.09.2015, 17:28 +0200 schrieb Alban Bedel:
> When of_reset_control_get() is called without connection ID it returns
> -ENOENT when the 'resets' property doesn't exists or is an empty entry.
> However when a connection ID is given it returns -EINVAL when the 'resets'
> property doesn't exists or the requested name can't be found. This is
> because the error code returned by of_property_match_string() is just
> passed down as an index to of_parse_phandle_with_args(), which then
> returns -EINVAL.

Is that true? As far as I can see, since commit bd69f73f2c81
("of: Create function for counting number of phandles in a property")
it returns the (positive) number of entries if index is negative and the
'resets' property exists and parses correctly (before it would return
-ENOENT). If there are parsing errors, it can also return -EINVAL.

regards
Philipp

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