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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42AA3C7618F for ; Tue, 16 Jul 2019 17:15:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15DD32173C for ; Tue, 16 Jul 2019 17:15:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="KNCcMt0a" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728563AbfGPRPq (ORCPT ); Tue, 16 Jul 2019 13:15:46 -0400 Received: from mout.gmx.net ([212.227.17.22]:58993 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728124AbfGPRPq (ORCPT ); Tue, 16 Jul 2019 13:15:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1563297326; bh=xNnIsDbgppK8wwBxMiTHNVXBTk1p7qOB7xrYiRrkhh8=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=KNCcMt0aSPEnh4pHQd2d/g8bY1FjoStxyLmGXY4SvcHPr+hNjHJCtcLzXJdiLS8cF XOaJZi94FLTj1UemEQpbVMZ+pi4mNg9Gb1AufLZT6wTX2zE6MxqOc5bD55uaBu9NbU tQlBkzckz6VfCMfaSa9OqwijFCW0QNHwglsF13JQ= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from localhost.localdomain ([37.4.249.111]) by mail.gmx.com (mrgmx101 [212.227.17.168]) with ESMTPSA (Nemesis) id 0LjeWC-1iKa0M2SHA-00beDU; Tue, 16 Jul 2019 19:15:26 +0200 From: Stefan Wahren To: Dan Williams , Vinod Koul , Eric Anholt , Florian Fainelli , Ray Jui , Scott Branden Cc: bcm-kernel-feedback-list@broadcom.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stefan Wahren Subject: [PATCH] dmaengine: bcm2835: Print error in case setting DMA mask fails Date: Tue, 16 Jul 2019 19:15:18 +0200 Message-Id: <1563297318-4900-1-git-send-email-wahrenst@gmx.net> X-Mailer: git-send-email 2.7.4 X-Provags-ID: V03:K1:fL6HCOJkHLSo99rnhKGJNd1g6cKxvMfFqhtxr/p3c3HgN4FbiMX Wd+iGmFRA82C/GbBmGYre5PwcjOUmaKjXDc8ZWNsF/A7W1PH+FnsKoOmKXaRdjvdaMVmKI8 QI4dygNsLqkUfJpAkNJxp1VGu2xA7D8cbsEUT606ucvC1itqkIXxUB35N4dXKNr769undih HhwgLvqsdizhvrzvUIkFw== X-UI-Out-Filterresults: notjunk:1;V03:K0:RYe9OtUzWrs=:bzoH7sjXqBy9ZGQ84yGcuZ rlvNEi25ozg7Cdp5Pl1LNI8c3BPeSyTRpx3sIbVHlQfHp3FCFoBecxlIW9ERUA0uzTC3AaRjj 4Dh2A1zxvQEtEK8snBnMZZLdMU5f8fWG+8Iptm4dxUG+P0uClP1dTjEop47R0AZ8ebvBJ7BWw l73NGF4qXJ1sgl/1CEzgnzMIxn4l1l3GXTveFRSqJoiHTdSKqAaXfWrKiqYV03505vK2yyBC1 yb7gFVxCOSY+fT9CCTZ7frKBwwalCZ8a5X/RISJGOmkemObiewAF9aRpbwqbIeRUV/p7maJrh 7DXdI59dtL793Wlo1JbDcXiZGKgF02rdrc1nInJqaeb0zIWPclYyqMN9Hjnyncl6aDFHltMO1 XjrULSwyzCd3y0SeqmuSk5rwYzWB3G17ginu0kxkc1oWIJUqwcPX/LR+XIYOSah6j4ZHeObdd hOrHG80gIjrPKyfFX2BwI69/rof0fbIuhHaclSG28rTtZ6WXDUfVmE7z5tZh/Pzrn16LfuY+M AMoKNg5/xQcYW8UCyUTdHpCWdSq0yoI1grQNCBXfcVF9iMs3TjC7F4LathXC7SKsWaWlpqksn fxmsQlu5OEStq0DoZnkyxCCdIS+URsKKlCtNRGGR/bQ3s2bMJFn9vgflHXzQ9RkciAk3Ucpcf Tds7TRdTodL6e/xp+EE4WzypnsKK5tqxj4XmWRcRVJsVJAxSnICeWtDEOzFAzVdrEicu51B+B /NDwQmlkW10icr7FsI5OlYC4H39QRUCgOcxzcgi8K9xtAAUKLGxGoxi8s9St5e5btECxM5e// ErVOwTiU0crHrFbxqqjK63IsXcrOS03nz9KiMs9jqxrYICiIKrqUOPUw0PH5DdjdUVpR+poMd LfCvGqNLhmkWUokEJ8PVLU/AKGy5wEL8CJ/FPXKcxZBSpA+rGwa3MtoZX51tU8r6kLbg4FTTJ QEmEfbbTFo+QTEBQmJ8dUP2U61QpoL/q7R09/9E0Ps3uvHlCdfWcYRlGb68JDF/ydyCbxepJP q+e2QIwBd6AUBhYJW75HTur0GuMR46lt3vApoJXoNlqn4LM4zITzHE53p/EESa/C0z3p9lzE7 KrfHJusRvBwRWM= Content-Transfer-Encoding: quoted-printable Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org During enabling of the RPi 4, we found out that the driver doesn't provide a helpful error message in case setting DMA mask fails. So add one. Signed-off-by: Stefan Wahren =2D-- drivers/dma/bcm2835-dma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 8101ff2f..970f654 100644 =2D-- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -871,8 +871,10 @@ static int bcm2835_dma_probe(struct platform_device *= pdev) pdev->dev.dma_mask =3D &pdev->dev.coherent_dma_mask; rc =3D dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); - if (rc) + if (rc) { + dev_err(&pdev->dev, "Unable to set DMA mask\n"); return rc; + } od =3D devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL); if (!od) =2D- 2.7.4