From patchwork Wed Sep 15 15:58:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12496465 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1CB1C4167E for ; Wed, 15 Sep 2021 15:59:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9FDAC61251 for ; Wed, 15 Sep 2021 15:59:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238120AbhIOQAs (ORCPT ); Wed, 15 Sep 2021 12:00:48 -0400 Received: from relay8-d.mail.gandi.net ([217.70.183.201]:37833 "EHLO relay8-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238017AbhIOQAs (ORCPT ); Wed, 15 Sep 2021 12:00:48 -0400 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 4CE661BF205; Wed, 15 Sep 2021 15:59:26 +0000 (UTC) From: Miquel Raynal To: Jonathan Cameron , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Dmitry Torokhov , Lee Jones , bcousson@baylibre.com, Tony Lindgren Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, Thomas Petazzoni , Vignesh Raghavendra , Lokesh Vutla , Tero Kristo , Ryan Barnett , Grygorii Strashko , Jason Reeder , Miquel Raynal , Jonathan Cameron Subject: [PATCH v3 08/47] mfd: ti_am335x_tscadc: Ensure a balanced number of node get/put Date: Wed, 15 Sep 2021 17:58:29 +0200 Message-Id: <20210915155908.476767-9-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210915155908.476767-1-miquel.raynal@bootlin.com> References: <20210915155908.476767-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org of_node_put() should be called after a successful of_get_child_by_name(). Signed-off-by: Miquel Raynal Reviewed-by: Jonathan Cameron --- drivers/mfd/ti_am335x_tscadc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 55adc379f94b..eb5c23e3eacd 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -142,6 +142,7 @@ static int ti_tscadc_probe(struct platform_device *pdev) node = of_get_child_by_name(pdev->dev.of_node, "tsc"); of_property_read_u32(node, "ti,wires", &tsc_wires); of_property_read_u32(node, "ti,coordiante-readouts", &readouts); + of_node_put(node); node = of_get_child_by_name(pdev->dev.of_node, "adc"); of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) { @@ -149,9 +150,13 @@ static int ti_tscadc_probe(struct platform_device *pdev) if (val > 7) { dev_err(&pdev->dev, " PIN numbers are 0..7 (not %d)\n", val); + of_node_put(node); return -EINVAL; } } + + of_node_put(node); + total_channels = tsc_wires + adc_channels; if (total_channels > 8) { dev_err(&pdev->dev, "Number of i/p channels more than 8\n");