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iw_cxgb4: drop listen destroy replies if no ep found

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If the thread waiting for a CLOSE_LISTSRV_RPL times out and bails,
then we need to handle a subsequent CPL if it arrives and the stid has
been released.  In this case silently drop it.

Cc: stable@vger.kernel.org
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Steve Wise 2017-09-05 11:52:33 -07:00 committed by Doug Ledford
parent 3d318605f5
commit 3c8415cc7a
1 changed files with 5 additions and 0 deletions
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5
drivers/infiniband/hw/cxgb4/cm.c
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@ -2333,9 +2333,14 @@ static int close_listsrv_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
unsigned int stid = GET_TID(rpl);
struct c4iw_listen_ep *ep = get_ep_from_stid(dev, stid);
if (!ep) {
pr_debug("%s stid %d lookup failure!\n", __func__, stid);
goto out;
}
pr_debug("%s ep %p\n", __func__, ep);
c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status));
c4iw_put_ep(&ep->com);
out:
return 0;
}