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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Bart Van Assche <bart.vanassche@sandisk.com>,
        Leon Romanovsky <leonro@mellanox.com>,
        Andrew Boyer <andrew.boyer@dell.com>,
        Moni Shoua <monis@mellanox.com>,
        Doug Ledford <dledford@redhat.com>,
        Sasha Levin <alexander.levin@verizon.com>
Subject: [PATCH 4.9 46/87] IB/rxe: Fix reference leaks in memory key invalidation code
Date:   Mon, 13 Nov 2017 13:56:03 +0100
Message-Id: <20171113125619.603147763@linuxfoundation.org>
In-Reply-To: <20171113125615.304035578@linuxfoundation.org>
References: <20171113125615.304035578@linuxfoundation.org>
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4.9-stable review patch.  If anyone has any objections, please let me know.

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

From: Bart Van Assche <bart.vanassche@sandisk.com>


[ Upstream commit ab17654476a11a1ed7d89f1104e2acdb7ed1c9ed ]

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Andrew Boyer <andrew.boyer@dell.com>
Cc: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/sw/rxe/rxe_req.c  |    1 +
 drivers/infiniband/sw/rxe/rxe_resp.c |    1 +
 2 files changed, 2 insertions(+)

--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -633,6 +633,7 @@ next_wqe:
 				goto exit;
 			}
 			rmr->state = RXE_MEM_STATE_FREE;
+			rxe_drop_ref(rmr);
 			wqe->state = wqe_state_done;
 			wqe->status = IB_WC_SUCCESS;
 		} else if (wqe->wr.opcode == IB_WR_REG_MR) {
--- a/drivers/infiniband/sw/rxe/rxe_resp.c
+++ b/drivers/infiniband/sw/rxe/rxe_resp.c
@@ -893,6 +893,7 @@ static enum resp_states do_complete(stru
 					return RESPST_ERROR;
 				}
 				rmr->state = RXE_MEM_STATE_FREE;
+				rxe_drop_ref(rmr);
 			}
 
 			wc->qp			= &qp->ibqp;


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