[Mesa-dev] [PATCH] intel: Move irb null check before dereference.

[Eric Anholt]

Vinson Lee <vlee at freedesktop.org> writes:

> Fixes "Dereference before null check" defect reported by Coverity.

The irb->mt check should be dropped, instead --
_mesa_source_buffer_exists() or _mesa_clip_copytexsubimage() should have
failed in that case, and we would never have reached this.
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