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drm/i915: Avoid requesting a zero-sized stolen object

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The stolen allocator objects loudly if the caller requests a zero-sized
object. This is a useful verbose check as in most cases the request
should have been pruned much early. Here we just want to silently return
before attempting the allocation.

Regression from
commit 484b41dd70
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:55 2014 -0800

    drm/i915: remove early fb allocation dependency on CONFIG_FB v2

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75963
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2014-03-10 08:07:02 +00:00 committed by Daniel Vetter
parent d1a59868ef
commit ff2652ea46
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_display.c
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@ -2076,6 +2076,9 @@ static bool intel_alloc_plane_obj(struct intel_crtc *crtc,
struct drm_mode_fb_cmd2 mode_cmd = { 0 };
u32 base = plane_config->base;
if (plane_config->size == 0)
return false;
obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base,
plane_config->size);
if (!obj)