[PATCH] drm/etnaviv: remove BUG_ON in MMU unmap path

[Russell King - ARM Linux]

On Wed, Apr 27, 2016 at 02:38:18PM +0200, Lucas Stach wrote:
> If the MMU map fails caused by an unaligned SG entry, the unmap path
> is called to undo all already setup SG mappings. When encountering the
> unaligned SG the unmap path hangs the kernel with a BUG(), while the
> error is recoverable by just failing the submit that references the
> faulty object.

I'm very tempted to NAK this, because I introduced it with good reason:
we should never see anything except a page-aligned number of bytes here.

Are you seeing this trigger?

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