From patchwork Thu Sep 29 02:37:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jia He X-Patchwork-Id: 611591 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 5D96FC6FA8E for ; Thu, 29 Sep 2022 02:39:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234880AbiI2CjU (ORCPT ); Wed, 28 Sep 2022 22:39:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234883AbiI2Cil (ORCPT ); Wed, 28 Sep 2022 22:38:41 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 68BBE125DB4; Wed, 28 Sep 2022 19:38:39 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 868E81480; Wed, 28 Sep 2022 19:38:45 -0700 (PDT) Received: from entos-ampere-02.shanghai.arm.com (entos-ampere-02.shanghai.arm.com [10.169.212.212]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 642763F73B; Wed, 28 Sep 2022 19:38:32 -0700 (PDT) From: Jia He To: Len Brown , James Morse , Tony Luck , Borislav Petkov , Mauro Carvalho Chehab , Robert Richter , Robert Moore , Qiuxu Zhuo , Yazen Ghannam , Jan Luebbe , Khuong Dinh , Kani Toshi Cc: Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, devel@acpica.org, "Rafael J . Wysocki" , Shuai Xue , Jarkko Sakkinen , linux-efi@vger.kernel.org, nd@arm.com, Jia He Subject: [PATCH v7 8/8] EDAC/igen6: Return consistent errno when another edac driver is enabled Date: Thu, 29 Sep 2022 02:37:26 +0000 Message-Id: <20220929023726.73727-9-justin.he@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220929023726.73727-1-justin.he@arm.com> References: <20220929023726.73727-1-justin.he@arm.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org Only a single edac driver can be enabled for EDAC MC. The igen6_init() should be returned with EBUSY instead of ENODEV, which is consistent with other edac drivers. Signed-off-by: Jia He --- drivers/edac/igen6_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c index d33c666221f9..544dd19072ea 100644 --- a/drivers/edac/igen6_edac.c +++ b/drivers/edac/igen6_edac.c @@ -1276,7 +1276,7 @@ static int __init igen6_init(void) owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) - return -ENODEV; + return -EBUSY; edac_op_state = EDAC_OPSTATE_NMI;