On ke, 2016-04-27 at 15:30 +0300, Mika Kuoppala wrote:
> Matthew Auld <[email protected]> writes:
> 
> > 
> > [ text/plain ]
> > Prefer a goto teardown path to do all the required cleanup.
> > 
> > v2:
> > (Joonas Lahtinen)
> >   - remove NULL assignments
> >   - rename goto labels
> > 
> > Cc: Mika Kuoppala <[email protected]>
> > Cc: Dave Gordon <[email protected]>
> > Cc: Joonas Lahtinen <[email protected]>
> > Signed-off-by: Matthew Auld <[email protected]>
> Reviewed-by: Mika Kuoppala <[email protected]>
> 

Reviewed-by: Joonas Lahtinen <[email protected]>

> > 
> > ---
> >  drivers/gpu/drm/i915/i915_gem_gtt.c | 25 ++++++++++++++++---------
> >  1 file changed, 16 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
> > b/drivers/gpu/drm/i915/i915_gem_gtt.c
> > index 0d666b3..87947ec 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> > @@ -866,6 +866,7 @@ static void gen8_free_page_tables(struct drm_device 
> > *dev,
> >  static int gen8_init_scratch(struct i915_address_space *vm)
> >  {
> >     struct drm_device *dev = vm->dev;
> > +   int ret;
> >  
> >     vm->scratch_page = alloc_scratch_page(dev);
> >     if (IS_ERR(vm->scratch_page))
> > @@ -873,24 +874,21 @@ static int gen8_init_scratch(struct 
> > i915_address_space *vm)
> >  
> >     vm->scratch_pt = alloc_pt(dev);
> >     if (IS_ERR(vm->scratch_pt)) {
> > -           free_scratch_page(dev, vm->scratch_page);
> > -           return PTR_ERR(vm->scratch_pt);
> > +           ret = PTR_ERR(vm->scratch_pt);
> > +           goto free_scratch_page;
> >     }
> >  
> >     vm->scratch_pd = alloc_pd(dev);
> >     if (IS_ERR(vm->scratch_pd)) {
> > -           free_pt(dev, vm->scratch_pt);
> > -           free_scratch_page(dev, vm->scratch_page);
> > -           return PTR_ERR(vm->scratch_pd);
> > +           ret = PTR_ERR(vm->scratch_pd);
> > +           goto free_pt;
> >     }
> >  
> >     if (USES_FULL_48BIT_PPGTT(dev)) {
> >             vm->scratch_pdp = alloc_pdp(dev);
> >             if (IS_ERR(vm->scratch_pdp)) {
> > -                   free_pd(dev, vm->scratch_pd);
> > -                   free_pt(dev, vm->scratch_pt);
> > -                   free_scratch_page(dev, vm->scratch_page);
> > -                   return PTR_ERR(vm->scratch_pdp);
> > +                   ret = PTR_ERR(vm->scratch_pdp);
> > +                   goto free_pd;
> >             }
> >     }
> >  
> > @@ -900,6 +898,15 @@ static int gen8_init_scratch(struct i915_address_space 
> > *vm)
> >             gen8_initialize_pdp(vm, vm->scratch_pdp);
> >  
> >     return 0;
> > +
> > +free_pd:
> > +   free_pd(dev, vm->scratch_pd);
> > +free_pt:
> > +   free_pt(dev, vm->scratch_pt);
> > +free_scratch_page:
> > +   free_scratch_page(dev, vm->scratch_page);
> > +
> > +   return ret;
> >  }
> >  
> >  static int gen8_ppgtt_notify_vgt(struct i915_hw_ppgtt *ppgtt, bool create)
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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