From nobody Wed Sep 3 06:21:58 2025 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 5C539ECAAA1 for ; Mon, 24 Oct 2022 12:25:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233586AbiJXMZM (ORCPT ); Mon, 24 Oct 2022 08:25:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233238AbiJXMXf (ORCPT ); Mon, 24 Oct 2022 08:23:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE4E413CCC; Mon, 24 Oct 2022 04:59:42 -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 EE5EB6129E; Mon, 24 Oct 2022 11:59:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09C8EC433D6; Mon, 24 Oct 2022 11:59:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666612764; bh=E6nMjH9elQkFPPehNJVGitkxW67b30EoBEbRIBxoJYw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UgulYvEc533CIu836IRc5LjGl4+pjTti3XUF44cfnGQTHOGC+kzGB3NqwN1lM1adn mdCAagw4ONQ/xNy6K/Uit/JdxLknDttgO+JAUhisbZWNThsI95fHaN5bOxQjU9tlxL tWKgbhIdctBU3qqP0AcCDR7Oe5RlfIoj3jyY8XP4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Liang He , Bjorn Andersson , Sasha Levin Subject: [PATCH 4.19 110/229] soc: qcom: smem_state: Add refcounting for the state->of_node Date: Mon, 24 Oct 2022 13:30:29 +0200 Message-Id: <20221024113002.566943406@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024112959.085534368@linuxfoundation.org> References: <20221024112959.085534368@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Liang He [ Upstream commit 90681f53b9381c23ff7762a3b13826d620c272de ] In qcom_smem_state_register() and qcom_smem_state_release(), we should better use of_node_get() and of_node_put() for the reference creation and destruction of 'device_node'. Fixes: 9460ae2ff308 ("soc: qcom: Introduce common SMEM state machine code") Signed-off-by: Liang He Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220721135217.1301039-2-windhl@126.com Signed-off-by: Sasha Levin --- drivers/soc/qcom/smem_state.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/smem_state.c b/drivers/soc/qcom/smem_state.c index d5437ca76ed9..1502cf037a6b 100644 --- a/drivers/soc/qcom/smem_state.c +++ b/drivers/soc/qcom/smem_state.c @@ -144,6 +144,7 @@ static void qcom_smem_state_release(struct kref *ref) struct qcom_smem_state *state =3D container_of(ref, struct qcom_smem_stat= e, refcount); =20 list_del(&state->list); + of_node_put(state->of_node); kfree(state); } =20 @@ -177,7 +178,7 @@ struct qcom_smem_state *qcom_smem_state_register(struct= device_node *of_node, =20 kref_init(&state->refcount); =20 - state->of_node =3D of_node; + state->of_node =3D of_node_get(of_node); state->ops =3D *ops; state->priv =3D priv; =20 --=20 2.35.1