linux-kernel - Re: [PATCH v2] drm/i915: Fix lock dropping in intel_tv

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Message-ID: <20140901103637.GB4193@intel.com>
Date:	Mon, 1 Sep 2014 13:36:37 +0300
From:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
To:	Chris Wilson <chris@...is-wilson.co.uk>,
	intel-gfx@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Tibor Billes <tbilles@....com>
Subject: Re: [PATCH v2] drm/i915: Fix lock dropping in intel_tv_detect()

On Mon, Sep 01, 2014 at 11:20:09AM +0100, Chris Wilson wrote:
> On Mon, Sep 01, 2014 at 01:07:40PM +0300, ville.syrjala@...ux.intel.com wrote:
> > From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> > 
> > When intel_tv_detect() fails to do load detection it would forget to
> > drop the locks and clean up the acquire context. Fix it up.
> > 
> > This is a regression from:
> >  commit 208bf9fdcd3575aa4a5d48b3e0295f7cdaf6fc44
> >  Author: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> >  Date:   Mon Aug 11 13:15:35 2014 +0300
> > 
> >     drm/i915: Fix locking for intel_enable_pipe_a()
> > 
> > v2: Make the code more readable (Chris)
> > 
> > Cc: Tibor Billes <tbilles@....com>
> > Signed-off-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> 
> Hmm, if we use WARN_ON() you should init type.

type is always set in the branch that sets status=connected.

> 
> Otherwise,
> Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
> -Chrsi
> 
> -- 
> Chris Wilson, Intel Open Source Technology Centre

-- 
Ville Syrjälä
Intel OTC
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