tree ffd7eba03f29dd2932dd32ac4adc2921bde7644b
parent a20583a7c2e35d80b1dfc1f60c9729498838725e
author Roland Dreier <rolandd@cisco.com> 1130694604 -0800
committer Roland Dreier <rolandd@cisco.com> 1130771432 -0800

[IB] uverbs: Avoid NULL pointer deref on CQ async event

Userspace CQs that have no completion event channel attached end up
with their cq_context set to NULL.  However, asynchronous events like
"CQ overrun" can still occur on such CQs, so add a uverbs_file member
to struct ib_ucq_object that we can follow to deliver these events.

Signed-off-by: Roland Dreier <rolandd@cisco.com>