From mboxrd@z Thu Jan 1 00:00:00 1970 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 188CEC433FE for ; Tue, 8 Nov 2022 14:03:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234970AbiKHODX (ORCPT ); Tue, 8 Nov 2022 09:03:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234971AbiKHODW (ORCPT ); Tue, 8 Nov 2022 09:03:22 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E33668696 for ; Tue, 8 Nov 2022 06:03:20 -0800 (PST) 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 1B61E611B7 for ; Tue, 8 Nov 2022 14:03:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D7BDC433C1; Tue, 8 Nov 2022 14:03:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667916199; bh=qAsy4P85RRqJEZ5DZ6zSBDGHq7SA/+NEoOYs103X56s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2ZihFiSP/9aRaakTpxJw2svNgj12UZR3K9EA3gly7j7vwiD3R/N9InRRe7pP7r9pl lPNi2rJcM3u5lIgJ5pJH8kXJWRGLwi/QUhVXymfeRxBdZD6mzrOcijc7JE31FAKHGQ 9dNZYQabvHlZ2wKBVWKiY79c/fqMkqLgsPyez0lo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Cristian Marussi , Sudeep Holla , Sasha Levin Subject: [PATCH 5.15 092/144] firmware: arm_scmi: Make Rx chan_setup fail on memory errors Date: Tue, 8 Nov 2022 14:39:29 +0100 Message-Id: <20221108133349.150569928@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221108133345.346704162@linuxfoundation.org> References: <20221108133345.346704162@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Cristian Marussi [ Upstream commit be9ba1f7f9e0b565b19f4294f5871da9d654bc6d ] SCMI Rx channels are optional and they can fail to be setup when not present but anyway channels setup routines must bail-out on memory errors. Make channels setup, and related probing, fail when memory errors are reported on Rx channels. Fixes: 5c8a47a5a91d ("firmware: arm_scmi: Make scmi core independent of the transport type") Signed-off-by: Cristian Marussi Link: https://lore.kernel.org/r/20221028140833.280091-4-cristian.marussi@arm.com Signed-off-by: Sudeep Holla Signed-off-by: Sasha Levin --- drivers/firmware/arm_scmi/driver.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 2c1d5f943dd3..16569af4a2ba 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -1516,8 +1516,12 @@ scmi_txrx_setup(struct scmi_info *info, struct device *dev, int prot_id) { int ret = scmi_chan_setup(info, dev, prot_id, true); - if (!ret) /* Rx is optional, hence no error check */ - scmi_chan_setup(info, dev, prot_id, false); + if (!ret) { + /* Rx is optional, report only memory errors */ + ret = scmi_chan_setup(info, dev, prot_id, false); + if (ret && ret != -ENOMEM) + ret = 0; + } return ret; } -- 2.35.1