From patchwork Thu Sep 2 21:51:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 506731 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 46BE0C04AB2 for ; Thu, 2 Sep 2021 21:52:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A627610E7 for ; Thu, 2 Sep 2021 21:52:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347693AbhIBVxN (ORCPT ); Thu, 2 Sep 2021 17:53:13 -0400 Received: from relay10.mail.gandi.net ([217.70.178.230]:46485 "EHLO relay10.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347688AbhIBVxM (ORCPT ); Thu, 2 Sep 2021 17:53:12 -0400 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 44371240002; Thu, 2 Sep 2021 21:52:09 +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-input@vger.kernel.org, linux-omap@vger.kernel.org, Thomas Petazzoni , Vignesh Raghavendra , Lokesh Vutla , Tero Kristo , Ryan Barnett , Grygorii Strashko , Jason Reeder , Miquel Raynal Subject: [PATCH v2 11/46] mfd: ti_am335x_tscadc: Ensure a balanced number of node get/put Date: Thu, 2 Sep 2021 23:51:09 +0200 Message-Id: <20210902215144.507243-12-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210902215144.507243-1-miquel.raynal@bootlin.com> References: <20210902215144.507243-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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 | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 858bd22c60f0..763bbc33fc3f 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -134,6 +134,7 @@ 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) { @@ -141,10 +142,13 @@ 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");