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 C184C330B00; Fri, 17 Oct 2025 15:46:22 +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=1760715982; cv=none; b=p0HtbfPsCueFisP5rtMlaWewf6JZ3CfwdJVVIUA8eofeQTQuH1ZL8ORFa8o7o0+EmVxLtRUxj7Vfzuzb3mbIAN4PLzKGFoeDwpmW5iVxraS2fgA6/lPNVqdgqsKACFv9lSabI7vRZTP2aE+I5nmZX+Q8XvwzjAA9RXK2t3nwKWc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760715982; c=relaxed/simple; bh=3oL+DNgzjdEtkNT3S4oLs4ktTl26m90yT5Kvw33mQKM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NGQ44dDrlYJY+959iE48Vs+DKdHKss+k2j1S4pmDzUB1BDsJvxOvJ6+Kj52/HVoMhU+taMw5MrIP9BfFOEIdviAb8EMJdbF4HFIkIUHp2wYLG6RltkNIC19FH8VUC+QU141nWgWoeAEGtnYmjNpJUX4hxOobukhyXym/Ibop9oU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CXi88zoM; 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="CXi88zoM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ECD64C4CEE7; Fri, 17 Oct 2025 15:46:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760715982; bh=3oL+DNgzjdEtkNT3S4oLs4ktTl26m90yT5Kvw33mQKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CXi88zoMgh293FM1kHVGCMfWxDZJSt86OqzJERkeuT3CpeCG9HojcpB3RFtOBiLNm jku/jk3A85ERH2GnAxBXoetxr/LV0xosaQso60rFY9gchTa9JDh69vbw42sosMMjJ+ BiVnciLf5XNQvSgQb0LRwe6NvT+1eSOlKI1oMo1E= 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 5.15 031/276] ACPI: processor: idle: Fix memory leak when register cpuidle device failed Date: Fri, 17 Oct 2025 16:52:04 +0200 Message-ID: <20251017145143.540214881@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251017145142.382145055@linuxfoundation.org> References: <20251017145142.382145055@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: 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 74459ac13f4bc..6b71082d474f9 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1403,6 +1403,9 @@ 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