Jason Gunthorpe df2ec7641b mm/mmu_notifiers: use the right return code for WARN_ON ...

The return code from the op callback is actually in _ret, while the
WARN_ON was checking ret which causes it to misfire.

Link: http://lkml.kernel.org/r/20191025175502.GA31127@ziepe.ca
Fixes: 8402ce61be ("mm/mmu_notifiers: check if mmu notifier callbacks are allowed to fail")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2019-11-06 08:47:50 -08:00

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