From patchwork Mon Sep 30 10:09:56 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Henriques X-Patchwork-Id: 279014 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 55F192C00C5 for ; Mon, 30 Sep 2013 20:12:33 +1000 (EST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1VQaSp-0004JI-IU; Mon, 30 Sep 2013 10:12:27 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1VQaSH-0003pL-Qu for kernel-team@lists.ubuntu.com; Mon, 30 Sep 2013 10:11:53 +0000 Received: from bl15-111-94.dsl.telepac.pt ([188.80.111.94] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1VQaSH-0003am-Kk; Mon, 30 Sep 2013 10:11:53 +0000 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Subject: [PATCH 019/104] staging: comedi: dt282x: dt282x_ai_insn_read() always fails Date: Mon, 30 Sep 2013 11:09:56 +0100 Message-Id: <1380535881-9239-20-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1380535881-9239-1-git-send-email-luis.henriques@canonical.com> References: <1380535881-9239-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Cc: Greg Kroah-Hartman , Dan Carpenter X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com 3.5.7.22 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter commit 2c4283ca7cdcc6605859c836fc536fcd83a4525f upstream. In dt282x_ai_insn_read() we call this macro like: wait_for(!mux_busy(), comedi_error(dev, "timeout\n"); return -ETIME;); Because the if statement doesn't have curly braces it means we always return -ETIME and the function never succeeds. Signed-off-by: Dan Carpenter Acked-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman Signed-off-by: Luis Henriques --- drivers/staging/comedi/drivers/dt282x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 736d8fa..ec85fe2 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -277,8 +277,9 @@ struct dt282x_private { } \ udelay(5); \ } \ - if (_i) \ + if (_i) { \ b \ + } \ } while (0) static int prep_ai_dma(struct comedi_device *dev, int chan, int size);