Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nathan Fontenot , "David S. Miller" , Sasha Levin Subject: [PATCH 4.9 015/108] ibmvnic: Call napi_disable instead of napi_enable in failure path Date: Thu, 15 Jun 2017 19:52:21 +0200 Message-Id: <20170615175337.895498483@linuxfoundation.org> In-Reply-To: <20170615175337.190782107@linuxfoundation.org> References: <20170615175337.190782107@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nathan Fontenot [ Upstream commit e722af6391949e8851310441bb0cec157d25611d ] The failure path in ibmvnic_open() mistakenly makes a second call to napi_enable instead of calling napi_disable. This can result in a BUG_ON for any queues that were enabled in the previous call to napi_enable. Signed-off-by: Nathan Fontenot Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/ibm/ibmvnic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -505,7 +505,7 @@ rx_pool_alloc_failed: adapter->rx_pool = NULL; rx_pool_arr_alloc_failed: for (i = 0; i < adapter->req_rx_queues; i++) - napi_enable(&adapter->napi[i]); + napi_disable(&adapter->napi[i]); alloc_napi_failed: return -ENOMEM; }