linux-kernel - i915: build warning in i915_hangcheck

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Message-ID: <CAGXu5jLSmJ6NSdi2krWpXbGJ+oE7hTa80ff=JHA4AsYo9=sX5A@mail.gmail.com>
Date:	Fri, 9 Aug 2013 15:26:55 -0700
From:	Kees Cook <keescook@...omium.org>
To:	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	dri-devel@...ts.freedesktop.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: i915: build warning in i915_hangcheck_elapsed

9107e9d227e3b0893829baee4ac59feb874d4c23 introduced "score", and while
it's actually not possible for it to be uninitialized (given the
return values of ring_stuck()), the warning should be suppressed. It
probably just needs a "default:" added to the switch statement.

drivers/gpu/drm/i915/i915_irq.c:1943:27: warning: ‘score’ may be used
uninitialized in this function [-Wuninitialized]

-Kees

-- 
Kees Cook
Chrome OS Security
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