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| author | Yannick Cote <yannick.cote@qlogic.com> | 2008-09-29 21:24:04 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-09-29 21:24:04 -0700 |
| commit | e441d6342890838bfc6d64ca2f0964aca08ae2a2 (patch) | |
| tree | 94a3fa3aba43ddf3b7381435c347d1699e755ab1 /drivers/infiniband | |
| parent | 940358967599ba9057b3c51ba906e1cd5b984729 (diff) | |
| download | kernel_samsung_aries-e441d6342890838bfc6d64ca2f0964aca08ae2a2.zip kernel_samsung_aries-e441d6342890838bfc6d64ca2f0964aca08ae2a2.tar.gz kernel_samsung_aries-e441d6342890838bfc6d64ca2f0964aca08ae2a2.tar.bz2 | |
IB/ipath: Fix hang on module unload
Handle the case where posting a send is requested when the link is
down. This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1117>.
Signed-off-by: Yannick Cote <yannick.cote@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index b766e40..eabc424 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -340,9 +340,16 @@ static int ipath_post_one_send(struct ipath_qp *qp, struct ib_send_wr *wr) int acc; int ret; unsigned long flags; + struct ipath_devdata *dd = to_idev(qp->ibqp.device)->dd; spin_lock_irqsave(&qp->s_lock, flags); + if (qp->ibqp.qp_type != IB_QPT_SMI && + !(dd->ipath_flags & IPATH_LINKACTIVE)) { + ret = -ENETDOWN; + goto bail; + } + /* Check that state is OK to post send. */ if (unlikely(!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK))) goto bail_inval; |