drm/i915: Unref context on failed eb_create

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I opted to do this instead of grabbing the context reference after
eb_create since eb_create can potentially call the shrinker, and that
makes things very complicated. This simple patch balances the ref count
without requiring a great deal of review to make sure the shrinker path
is safe.

Theoretically (by design) the shrinker can end up destroying a context,
which enforces the reasoning for doing the fix this way instead of
moving the reference to later in the function.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Ben Widawsky 2014-04-04 22:41:07 -07:00 • committed by Daniel Vetter

parent cfa7698bd4

commit 935f38d694

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/i915/i915_gem_execbuffer.c

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