From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D315486424; Sat, 12 Sep 2026 18:15:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789236908; cv=none; b=YF6Am2aD5fWF5WWm/VdGORYwfuWRbTBOduI48uvX4bP+KVB8RPLy5yjsb2Yh9wVLKcyeCftqAguK1hqZVDWsLL+ISae2TqrRPy16pnQQ17WszbbieVm9ZF6Ur1xNveBGc8SP0p+76YepkArSC/10gPPZtOxRMXeTrUOqA49jG4Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789236908; c=relaxed/simple; bh=rfUkF/OHIoH/PmhuLbqzTvck+jwDSq5VzHKtMWayDak=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QDAufyQGQnf4MNOKNHKI+xEnULUPj5Qqvg39RrlJnECQlukmJ6vASD3SPBpyLMn4xNoxobxkNBB9jc8jN/MYF0Fo3ZEOzaadFw9MDgCgdBL8FrPrzh7F6gg6W+sYXU4D1Oh5BCm3ElCNLGICoO639BqRjzFlrI2Eqja+JcMlANE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Owlyirxb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Owlyirxb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D55BB1F000FF; Sat, 12 Sep 2026 18:15:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789236906; bh=IckOC7w8Ed4aEZwJb+ajprJ0qrNtoSHzp/2yht9uuBE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Owlyirxb+fV+n7/PwWUWvIyco3XuWLlIaBbDU5o/QdGumeNjicxhhFRWOD7u8+O8/ 9ykl57HcGPyCN4pqqr/Xb4ktXYvIhywzqUnjVrxoNjwLgDKbe506j0axQ4BXHOvDqE R1N15AAdxOqSiGNPlTMabWZBK486euZUQJBYpbt4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, WenTao Liang , Mark Brown Subject: [PATCH 5.15 124/935] regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving dangling of_node pointer Date: Sat, 12 Sep 2026 08:52:34 +0200 Message-ID: <20260912065529.667927709@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065526.833703348@linuxfoundation.org> References: <20260912065526.833703348@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: WenTao Liang commit f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c upstream. In as3722_get_regulator_dt_data(), of_get_child_by_name() acquires a reference on np, which is then assigned to pdev->dev.of_node. The function immediately calls of_node_put(np), releasing the reference and leaving pdev->dev.of_node as a dangling pointer. Remove the of_node_put(np) call to let the device hold the reference. Cc: stable@vger.kernel.org Fixes: bc407334e9a6 ("regulator: as3722: add regulator driver for AMS AS3722") Signed-off-by: WenTao Liang Link: https://patch.msgid.link/20260626160150.54291-1-vulab@iscas.ac.cn Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- drivers/regulator/as3722-regulator.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/regulator/as3722-regulator.c +++ b/drivers/regulator/as3722-regulator.c @@ -600,7 +600,6 @@ static int as3722_get_regulator_dt_data( ret = of_regulator_match(&pdev->dev, np, as3722_regulator_matches, ARRAY_SIZE(as3722_regulator_matches)); - of_node_put(np); if (ret < 0) { dev_err(&pdev->dev, "Parsing of regulator node failed: %d\n", ret);