From patchwork Thu Apr 6 10:58:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 9666839 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1F2E660365 for ; Thu, 6 Apr 2017 10:58:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1ABEC26E8A for ; Thu, 6 Apr 2017 10:58:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F71C2847F; Thu, 6 Apr 2017 10:58:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8702928472 for ; Thu, 6 Apr 2017 10:58:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755799AbdDFK6r (ORCPT ); Thu, 6 Apr 2017 06:58:47 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:59354 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756471AbdDFK6k (ORCPT ); Thu, 6 Apr 2017 06:58:40 -0400 Received: from [2001:470:1f1d:6b5::3] (helo=debutante) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1cw57a-0001ZD-9M; Thu, 06 Apr 2017 10:58:36 +0000 Received: from broonie by debutante with local (Exim 4.89) (envelope-from ) id 1cw57X-00050x-Id; Thu, 06 Apr 2017 11:58:31 +0100 From: Mark Brown To: Rabin Vincent Cc: Mark Brown , broonie@kernel.org, linux-spi@vger.kernel.org, linux-spi@vger.kernel.org In-Reply-To: <1491466583-6121-1-git-send-email-rabin.vincent@axis.com> Message-Id: Date: Thu, 06 Apr 2017 11:58:31 +0100 X-SA-Exim-Connect-IP: 2001:470:1f1d:6b5::3 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Applied "spi: pl022: don't use uninitialized variable" to the spi tree X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The patch spi: pl022: don't use uninitialized variable has been applied to the spi tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From 849794c50b24b93676b939028c811d6e116ef335 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Thu, 6 Apr 2017 10:16:23 +0200 Subject: [PATCH] spi: pl022: don't use uninitialized variable The num-cs property is a required property according to the binding documentation. However, if it is not present, the driver currently simply uses random junk from the stack for the num-cs since the variable whose pointer is passed to of_property_read_u32() is not initialized. Signed-off-by: Rabin Vincent Signed-off-by: Mark Brown --- drivers/spi/spi-pl022.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index f7f7ba17b40e..2f76e022cc59 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2074,7 +2074,7 @@ pl022_platform_data_dt_get(struct device *dev) { struct device_node *np = dev->of_node; struct pl022_ssp_controller *pd; - u32 tmp; + u32 tmp = 0; if (!np) { dev_err(dev, "no dt node defined\n");