From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B02DC19F2A for ; Mon, 8 Aug 2022 01:49:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243156AbiHHBts (ORCPT ); Sun, 7 Aug 2022 21:49:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243184AbiHHBsr (ORCPT ); Sun, 7 Aug 2022 21:48:47 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05DD417A92; Sun, 7 Aug 2022 18:37:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CBD1960DBB; Mon, 8 Aug 2022 01:37:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21B27C433D6; Mon, 8 Aug 2022 01:37:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659922640; bh=hwBSpc7erig/674qMUa5THYn7tKXm6QBe24djanajcU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UrTCBRJ/vpUULNPDYRR6hghplr6J7PhQ4kRJSEWCJKBqb/FVXWnOREo4GTE1dO5CN YvpWJM+B7PWNVMUcFpmejyEqWtqUooZO0G6cxE3XqQRxVB8KIJZcTmyt38rCnT/HYK aMSL4gwMYq6/R0DPuKsR62kL0ibGAo2nJFG3GQE+JCNBOWabXReO0CdJ7MV79BS+XQ TKJ/Bur53lisuMEJCbOWIgIN2pO2SPVWHO1tudzBk3yMc3XwDciXCTnd//bmviuVPw 9k5E89BQn1wqfbdG9CUSiI7Gq2zZ4yYfAtKSnNOgII56HAUFtk66ZTrWvbvkKWKBhV jX4N1oZH2MaSQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Liang He , Geert Uytterhoeven , Sasha Levin , magnus.damm@gmail.com, linux@armlinux.org.uk, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.15 37/45] ARM: shmobile: rcar-gen2: Increase refcount for new reference Date: Sun, 7 Aug 2022 21:35:41 -0400 Message-Id: <20220808013551.315446-37-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220808013551.315446-1-sashal@kernel.org> References: <20220808013551.315446-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Liang He [ Upstream commit 75a185fb92e58ccd3670258d8d3b826bd2fa6d29 ] In rcar_gen2_regulator_quirk(), for_each_matching_node_and_match() will automatically increase and decrease the refcount. However, we should call of_node_get() for the new reference created in 'quirk->np'. Besides, we also should call of_node_put() before the 'quirk' being freed. Signed-off-by: Liang He Link: https://lore.kernel.org/r/20220701121804.234223-1-windhl@126.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c index 09ef73b99dd8..ba44cec5e59a 100644 --- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c +++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c @@ -125,6 +125,7 @@ static int regulator_quirk_notify(struct notifier_block *nb, list_for_each_entry_safe(pos, tmp, &quirk_list, list) { list_del(&pos->list); + of_node_put(pos->np); kfree(pos); } @@ -174,11 +175,12 @@ static int __init rcar_gen2_regulator_quirk(void) memcpy(&quirk->i2c_msg, id->data, sizeof(quirk->i2c_msg)); quirk->id = id; - quirk->np = np; + quirk->np = of_node_get(np); quirk->i2c_msg.addr = addr; ret = of_irq_parse_one(np, 0, argsa); if (ret) { /* Skip invalid entry and continue */ + of_node_put(np); kfree(quirk); continue; } @@ -225,6 +227,7 @@ static int __init rcar_gen2_regulator_quirk(void) err_mem: list_for_each_entry_safe(pos, tmp, &quirk_list, list) { list_del(&pos->list); + of_node_put(pos->np); kfree(pos); } -- 2.35.1