From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8642A311958; Mon, 13 Oct 2025 15:09:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760368188; cv=none; b=QFssIbv16r+9iKnQtqhMYwqvK9g7jyNhH/fufRZuGrw/QAYLvkGvyyn7bltC8ozrMKKsWj0tkKhGvj22oFKbf17q6qu9LqrJerGDhcfu/855e+y1GiuQqTv5Lvs4y0Qqz9C+QwZbAOgY3sN1lmf8XfGYH1FBDoyYVB7RrEsKDwg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760368188; c=relaxed/simple; bh=7VdeC7ODruayH2jsWSJ+H0HDohUQ4ODNOu4BE4sssPs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iPV2TODgGo69tL5dk43e4Uc3iOp/zvWOCSforrHWHj5ZvjUBR9M1gQJaYQZ22dLf3wSR/kDglbzfVF45kjfSg2yQPdQ5BcxIQ83PVNqAHcQUCi3vpOrD0oa30mT3iVh7TlytmdHrtPb7ruJmIW8Sn9mx7RhMMbQn7fouQAUde/M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OJVhvATk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OJVhvATk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 021E9C4CEFE; Mon, 13 Oct 2025 15:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760368188; bh=7VdeC7ODruayH2jsWSJ+H0HDohUQ4ODNOu4BE4sssPs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OJVhvATkj4naSbU5KuEiB5WPj6kCFqmwBix32vruoJybPQC9gG4/VSe+wX1/gybjU jk/u2vlQLVAIo18cWP9iZ10T9IlieAeMbStQ7V8CgfSkxeaS3+ck72br5xxiX04cl4 jtrqVvBNeVSJg51PTpmeFZUFA03sdTO75jmbHdIM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Huisong Li , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 6.12 031/262] ACPI: processor: idle: Fix memory leak when register cpuidle device failed Date: Mon, 13 Oct 2025 16:42:53 +0200 Message-ID: <20251013144327.254081743@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251013144326.116493600@linuxfoundation.org> References: <20251013144326.116493600@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 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Huisong Li [ Upstream commit 11b3de1c03fa9f3b5d17e6d48050bc98b3704420 ] The cpuidle device's memory is leaked when cpuidle device registration fails in acpi_processor_power_init(). Free it as appropriate. Fixes: 3d339dcbb56d ("cpuidle / ACPI : move cpuidle_device field out of the acpi_processor_power structure") Signed-off-by: Huisong Li Link: https://patch.msgid.link/20250728070612.1260859-2-lihuisong@huawei.com [ rjw: Changed the order of the new statements, added empty line after if () ] [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/processor_idle.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 0888e4d618d53..b524cf27213d4 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1410,6 +1410,9 @@ int acpi_processor_power_init(struct acpi_processor *pr) if (retval) { if (acpi_processor_registered == 0) cpuidle_unregister_driver(&acpi_idle_driver); + + per_cpu(acpi_cpuidle_device, pr->id) = NULL; + kfree(dev); return retval; } acpi_processor_registered++; -- 2.51.0