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drm/i915: Early return for no-op i915_vma_pin_fence()

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If we have no fence and desire no fence on the vma, return before we try
and take the vm->mutex.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200108153550.3803446-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-01-08 15:35:49 +00:00
parent 6e8b0f53c3
commit 93db1cb402
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_gem_fence_reg.c
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@ -412,6 +412,9 @@ int i915_vma_pin_fence(struct i915_vma *vma)
{
int err;
if (!vma->fence && !i915_gem_object_is_tiled(vma->obj))
return 0;
/*
* Note that we revoke fences on runtime suspend. Therefore the user
* must keep the device awake whilst using the fence.