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RDMA/srp: Fix NULL deref at srp_destroy_qp()

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If srp_init_qp() fails at srp_create_ch_ib() then ch->send_cq
may be NULL.
Calling directly to ib_destroy_qp() is sufficient because
no work requests were posted on the created qp.

Fixes: 9294000d6d ("IB/srp: Drain the send queue before destroying a QP")
Cc: <stable@vger.kernel.org>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Bart van Assche <bart.vanassche@sandisk.com>--
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Israel Rukshin 2017-05-11 18:52:36 +03:00 committed by Doug Ledford
parent 0a1a972630
commit 95c2ef50c7
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/ulp/srp/ib_srp.c
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@ -575,7 +575,7 @@ static int srp_create_ch_ib(struct srp_rdma_ch *ch)
return 0;
err_qp:
srp_destroy_qp(ch, qp);
ib_destroy_qp(qp);
err_send_cq:
ib_free_cq(send_cq);