Re: [PATCH v2 4/7] drm/i915/sdvo: Check that we have space for the infoframe

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On Mon, Apr 22, 2019 at 06:37:48PM +0000, Sripada, Radhakrishna wrote:
> On Wed, 2019-04-10 at 20:08 +0300, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > Before we go writing the infoframe let's make sure we have
> > the space for it. Not that it really matters since the write
> > loop would just terminate early in that case.
> > 
> > v2: Check after the debug print and ++ (Chris)
> > 
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > ---
> >  drivers/gpu/drm/i915/intel_sdvo.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_sdvo.c
> > b/drivers/gpu/drm/i915/intel_sdvo.c
> > index 7f64352a3413..14348dfb024a 100644
> > --- a/drivers/gpu/drm/i915/intel_sdvo.c
> > +++ b/drivers/gpu/drm/i915/intel_sdvo.c
> > @@ -976,6 +976,9 @@ static bool intel_sdvo_write_infoframe(struct
> > intel_sdvo *intel_sdvo,
> >  	DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size:
> > %i\n",
> >  		      if_index, length, hbuf_size);
> If the above line is newly added why dont I See a + at the beginning of
> the line? Is it from a previous version of the patch?

It's not newly added. What gave you the idea that it was?

> 
> -Radhakrishna(RK) Sripada
> >  
> > +	if (hbuf_size < length)
> > +		return false;
> > +
> >  	for (i = 0; i < hbuf_size; i += 8) {
> >  		memset(tmp, 0, 8);
> >  		if (i < length)

-- 
Ville Syrjälä
Intel
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