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drm/i915/guc: Assert ctch->vma is allocated

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Silence smatch by demonstrating that ctch->vma is allocated
following a successful chch_init()

drivers/gpu/drm/i915/intel_guc_ct.c:204 ctch_open() error:
 we previously assumed 'ctch->vma' could be null (see line 197)

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106135154.52520-1-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Michal Wajdeczko 2017-11-06 13:51:54 +00:00 committed by Chris Wilson
parent 856efd21c6
commit 1c5a907180
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/intel_guc_ct.c
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@ -198,6 +198,7 @@ static int ctch_open(struct intel_guc *guc,
err = ctch_init(guc, ctch);
if (unlikely(err))
goto err_out;
GEM_BUG_ON(!ctch->vma);
}
/* vma should be already allocated and map'ed */