linux-kernel - [ 20/94] RDMA/cxgb4: Use dst parameter in import

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Message-Id: <20120527010426.593979885@linuxfoundation.org>
Date:	Sun, 27 May 2012 10:04:43 +0900
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Steve Wise <swise@...ngridcomputing.com>,
	Roland Dreier <roland@...estorage.com>
Subject: [ 20/94] RDMA/cxgb4: Use dst parameter in import_ep()

3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Steve Wise <swise@...ngridcomputing.com>

commit bd61baaf59669accae2720799394a51fecabe5d9 upstream.

Function import_ep() is incorrectly using ep->dst instead of the dst
ptr passed in.  This causes a crash when accepting new rdma connections
becase ep->dst is not initialized yet.

Signed-off-by: Steve Wise <swise@...ngridcomputing.com>
Signed-off-by: Roland Dreier <roland@...estorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/infiniband/hw/cxgb4/cm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1593,7 +1593,7 @@ static int import_ep(struct c4iw_ep *ep,
 					n, n->dev, 0);
 		if (!ep->l2t)
 			goto out;
-		ep->mtu = dst_mtu(ep->dst);
+		ep->mtu = dst_mtu(dst);
 		ep->tx_chan = cxgb4_port_chan(n->dev);
 		ep->smac_idx = (cxgb4_port_viid(n->dev) & 0x7F) << 1;
 		step = cdev->rdev.lldi.ntxq /


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