RDMA/verbs: Check existence of function prior to accessing it

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Update all the flows to ensure that function pointer exists prior
to accessing it.

This is much safer than checking the uverbs_ex_mask variable, especially
since we know that test isn't working properly and will be removed
in -next.

This prevents a user triggereable oops.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Leon Romanovsky 2018-02-14 14:38:43 +02:00 • committed by Jason Gunthorpe

parent 1f5a6c47aa

commit 2188558621

2 changed files with 24 additions and 0 deletions

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3

drivers/infiniband/core/core_priv.h

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21

drivers/infiniband/core/uverbs_cmd.c

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