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authorYannick Cote <yannick.cote@qlogic.com>2008-09-30 00:24:04 -0400
committerRoland Dreier <rolandd@cisco.com>2008-09-30 00:24:04 -0400
commite441d6342890838bfc6d64ca2f0964aca08ae2a2 (patch)
tree94a3fa3aba43ddf3b7381435c347d1699e755ab1
parent940358967599ba9057b3c51ba906e1cd5b984729 (diff)
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>
-rw-r--r--drivers/infiniband/hw/ipath/ipath_verbs.c7
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 b766e40e9ebf..eabc4247860b 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)
340 int acc; 340 int acc;
341 int ret; 341 int ret;
342 unsigned long flags; 342 unsigned long flags;
343 struct ipath_devdata *dd = to_idev(qp->ibqp.device)->dd;
343 344
344 spin_lock_irqsave(&qp->s_lock, flags); 345 spin_lock_irqsave(&qp->s_lock, flags);
345 346
347 if (qp->ibqp.qp_type != IB_QPT_SMI &&
348 !(dd->ipath_flags & IPATH_LINKACTIVE)) {
349 ret = -ENETDOWN;
350 goto bail;
351 }
352
346 /* Check that state is OK to post send. */ 353 /* Check that state is OK to post send. */
347 if (unlikely(!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK))) 354 if (unlikely(!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK)))
348 goto bail_inval; 355 goto bail_inval;