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| author | Ralph Campbell <ralph.campbell@qlogic.com> | 2009-03-03 23:22:17 +0100 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-03-03 23:22:17 +0100 |
| commit | 4780c1953f9bef07365b13af01ae4e8238ecd3de (patch) | |
| tree | ce68e77fc5ad410b9c320cf80ad7f76faa1bc7f1 /crypto | |
| parent | IB/mad: initialize mad_agent_priv before putting on lists (diff) | |
| download | linux-4780c1953f9bef07365b13af01ae4e8238ecd3de.tar.xz linux-4780c1953f9bef07365b13af01ae4e8238ecd3de.zip | |
IB/mad: Fix ib_post_send_mad() returning 0 with no generate send comp
If ib_post_send_mad() returns 0, the API guarantees that there will be
a callback to send_buf->mad_agent->send_handler() so that the sender
can call ib_free_send_mad(). Otherwise, the ib_mad_send_buf will be
leaked and the mad_agent reference count will never go to zero and the
IB device module cannot be unloaded. The above can happen without
this patch if process_mad() returns (IB_MAD_RESULT_SUCCESS |
IB_MAD_RESULT_CONSUMED).
If process_mad() returns IB_MAD_RESULT_SUCCESS and there is no agent
registered to receive the mad being sent, handle_outgoing_dr_smp()
returns zero which causes a MAD packet which is at the end of the
directed route to be incorrectly sent on the wire but doesn't cause a
hang since the HCA generates a send completion.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions