From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53636 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752855AbdBUNEu (ORCPT ); Tue, 21 Feb 2017 08:04:50 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dave Jiang , Jon Mason Subject: [PATCH 4.9 19/22] ntb: ntb_perf missing dmaengine_unmap_put Date: Tue, 21 Feb 2017 14:03:33 +0100 Message-Id: <20170221130219.715824705@linuxfoundation.org> In-Reply-To: <20170221130218.888428471@linuxfoundation.org> References: <20170221130218.888428471@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Jiang commit 9644347c5240d0ee3ba7472ef332aaa4ff4db398 upstream. In the normal I/O execution path, ntb_perf is missing a call to dmaengine_unmap_put() after submission. That causes us to leak unmap objects. Signed-off-by: Dave Jiang Fixes: 8a7b6a77 ("ntb: ntb perf tool") Signed-off-by: Jon Mason Signed-off-by: Greg Kroah-Hartman --- drivers/ntb/test/ntb_perf.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/ntb/test/ntb_perf.c +++ b/drivers/ntb/test/ntb_perf.c @@ -265,6 +265,8 @@ static ssize_t perf_copy(struct pthr_ctx if (dma_submit_error(cookie)) goto err_set_unmap; + dmaengine_unmap_put(unmap); + atomic_inc(&pctx->dma_sync); dma_async_issue_pending(chan);