linux-kernel - [PATCH 4.9 111/329] ibmvnic: Free RX socket buffer in case of adapter error

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Date:   Mon, 28 May 2018 12:00:40 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.9 111/329] ibmvnic: Free RX socket buffer in case of adapter error

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

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

From: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>

[ Upstream commit 4b9b0f01350500173f17e2b2e65beb4df4ef99c7 ]

If a RX buffer is returned to the client driver with an error, free the
corresponding socket buffer before continuing.

Signed-off-by: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -994,6 +994,7 @@ restart_poll:
 			netdev_err(netdev, "rx error %x\n", next->rx_comp.rc);
 			/* free the entry */
 			next->rx_comp.first = 0;
+			dev_kfree_skb_any(rx_buff->skb);
 			remove_buff_from_pool(adapter, rx_buff);
 			break;
 		}