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8ffc024681
We currently only round up the userspace size to the next page. We assume that userspace hasn't made a mistake and requested a zero-length gem object and all through our internal code we then presume that every object is backed by at least a single page. Fix that oversight and report EINVAL back to userspace if they try to create a zero length object. [danvet: This fixes tests/gem_bad_length] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com> |
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