IPoIB: Fix crash in dev_open error flow

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If napi has never been enabled when calling ipoib_ib_dev_stop, a
kernel crash occurs, because the verbs layer completion handler
(ipoib_ib_completion) calls napi_schedule unconditionally.

If the napi structure passed in the napi_schedule call has not
been initialized, napi will crash.

The cleanest solution is to simply enable napi before calling
ipoib_ib_dev_stop in the dev_open error flow. (dev_stop then
immediately disables napi).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

...

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Erez Shitrit 2013-10-16 17:37:47 +03:00 • committed by Roland Dreier

parent 959f58544b

commit c2bb5628db

1 changed files with 7 additions and 4 deletions

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drivers/infiniband/ulp/ipoib/ipoib_ib.c

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