IB/uverbs: Improve lockdep_check

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This is really being used as an assert that the expected usecnt
is being held and implicitly that the usecnt is valid. Rename it to
assert_uverbs_usecnt and tighten the checks to only accept valid
values of usecnt (eg 0 and < -1 are invalid).

The tigher checkes make the assertion cover more cases and is more
likely to find bugs via syzkaller/etc.

Fixes: 3832125624 ("IB/core: Add support for idr types")
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Jason Gunthorpe 2018-02-13 12:18:38 +02:00

parent 6623e3e3cd

commit 104f268d43

1 changed files with 7 additions and 7 deletions

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drivers/infiniband/core/rdma_core.c

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