From nobody Thu Apr 2 23:02:45 2026 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 447F1C6FA92 for ; Tue, 20 Sep 2022 14:14:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231751AbiITONg (ORCPT ); Tue, 20 Sep 2022 10:13:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231411AbiITONH (ORCPT ); Tue, 20 Sep 2022 10:13:07 -0400 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [IPv6:2a00:1450:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 554971A388 for ; Tue, 20 Sep 2022 07:11:23 -0700 (PDT) Received: by mail-ej1-x634.google.com with SMTP id l14so6464310eja.7 for ; Tue, 20 Sep 2022 07:11:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date; bh=IsXtqWi3aYMJWgr4SCjULTHnfzXmNkyNP5+0rfZs3GE=; b=Wg+USxpTe2mvtgr+Cd7kMlIFnWdYOcgj1feCbTD48oJIvWAGrIPvx2p8i8NZ/2hCCw /aY2Y9toBiozhvZ4WbJOC7ncsBCDHggHirIjyMR3EAlySXxJYEuiK7YN8m3uLWpByMIn AxXP1glYWmVsKB6atXE12CCxANcsv/229T6Gg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date; bh=IsXtqWi3aYMJWgr4SCjULTHnfzXmNkyNP5+0rfZs3GE=; b=R7N1liekFMPATAaf+WtKBqVzrwoNN+6mvUoaFgErlxdMyt2pJPOPNGwI9dBxsYKzNi fTd+FPRw5caWh70BX+VrvD6gXOgQK9hwHnKKbamPEchtyMgarSzP9R975tBCvVjmKcSJ irTA5IJA7GcDGNt2EffHkMVECj+uEKNo634P7iaZysoDKnYpBTUGfc+BZozBhtUNupbM UgV7w5LyneDNSDHW59kbsSQvILiXF4lEJxjSeDckYpEWjYa5AiDV7/kZCzsl/b+jiVw/ fKSx3s5tn8qEirJ3U6dUg+s4RuHB4ltO87V4bVWtaBRcdEocEW6DYQrnM1NtAsXCDqkJ fn/w== X-Gm-Message-State: ACrzQf2yf6mWTvD6KG4Bu7/s1QxQxi0PoHb9ZDWp5+jN9x3C111Tbfm7 IqFIbNq/mr25I/xAFHYjyAPjK+yTFa0ZExYox90= X-Google-Smtp-Source: AMsMyM4Tsu6DrqVeVB0QDh8AuoFV1Dh8rvxs30c/15xLvA3rnx8VcrJnpsiyiZ2SBJy+3SARBYf2RA== X-Received: by 2002:a17:906:730f:b0:781:cb9a:cc1b with SMTP id di15-20020a170906730f00b00781cb9acc1bmr2194784ejc.41.1663683081472; Tue, 20 Sep 2022 07:11:21 -0700 (PDT) Received: from alco.roam.corp.google.com ([2620:0:1059:10:935d:52b0:7461:88e1]) by smtp.gmail.com with ESMTPSA id b24-20020aa7c918000000b004518ee90b4dsm129668edt.1.2022.09.20.07.11.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Sep 2022 07:11:21 -0700 (PDT) From: Ricardo Ribalda Date: Tue, 20 Sep 2022 16:11:05 +0200 Subject: [PATCH v1 2/5] media: uvcvideo: improve error logging in uvc_query_ctrl() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20220920-resend-v4l2-compliance-v1-2-81364c15229b@chromium.org> References: <20220920-resend-v4l2-compliance-v1-0-81364c15229b@chromium.org> In-Reply-To: <20220920-resend-v4l2-compliance-v1-0-81364c15229b@chromium.org> To: Mauro Carvalho Chehab , Laurent Pinchart Cc: Hans Verkuil , Ricardo Ribalda , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.11.0-dev-d93f8 X-Developer-Signature: v=1; a=openpgp-sha256; l=1125; i=ribalda@chromium.org; h=from:subject:message-id; bh=xuDJMTqPwFnBT90gGjW9sM+//WBwScMY4uWO/jQUOuQ=; b=owEBbQKS/ZANAwAKAdE30T7POsSIAcsmYgBjKcn+BMi7ITepYifnHZ0BCDGSoJWTOm0BW6fy98Tr u8zH2QOJAjMEAAEKAB0WIQREDzjr+/4oCDLSsx7RN9E+zzrEiAUCYynJ/gAKCRDRN9E+zzrEiM9tD/ 9GwAfC5G1onbDTMyTZEVTc2GnoQQi38QcbejqNYFqdF8qfKCD7qvdjt4OvAYlFnNIOXmBPbqy/arGd vaILw71ZtnaXhAet00YxVRvtswXeWlWJdCyzRpaMT71o2p2tGGZO+aBQOYwCqp/CjGAOe6+rTlFx93 RbzBAPiKnkMlnsj9guKyWLE4p3vCPDHfhTdihcC7xYX4bHEYjGF687htu/Ilfxt0PSbJ36+HEObyOk E4IjvA393FCnsfxUWe/IQLk9m2fpseYmDw9yOjmp2eb5jmXsrrXdmfDn+7vSy/+rrZoN4I9VszxZ5s 0UvmzTcU9YcgyLIbq7bvhfSyHV8iukbm5hV2REtlcl0dczDBSVd/IbQPd9UjQX28ffsiGGLQ70boiK 6nfAEFnnnnNVmgjAudGOElgbphyocRrBBL8ZEPA/oM4Hk2VEUPGHDAyLMC54Q0sD8BBA3wbV0J/JI5 EzQVTuK+crzLdqN4lxzPZZ4saFP0z4jae1Hb4BK+j3eylNsSJ8y8gYJwEAorD51xLPXGC+AUrxt5j5 FoB0RxDkq7aRDlOdeDM0AQXd45YewZRlwY49y1qDKuRgxNPnvj0jDMkYSBLItMQvW0Mb7ijR7v/7KI 2/zsy8E4S9lT38JtFfq2x2Ik4hQMhy7b8T3Gz8g+G4E0EgiU4ym9Lis48iEA== X-Developer-Key: i=ribalda@chromium.org; a=openpgp; fpr=9EC3BB66E2FC129A6F90B39556A0D81F9F782DA9 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hans Verkuil If __uvc_query_ctrl() failed with a non-EPIPE error, then report that with dev_err. If an error code is obtained, then report that with dev_dbg. Reviewed-by: Ricardo Ribalda Signed-off-by: Hans Verkuil diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_= video.c index 170a008f4006..2cf7f692c0bb 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -79,13 +79,14 @@ int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8= unit, if (likely(ret =3D=3D size)) return 0; =20 - dev_err(&dev->udev->dev, - "Failed to query (%s) UVC control %u on unit %u: %d (exp. %u).\n", - uvc_query_name(query), cs, unit, ret, size); - - if (ret !=3D -EPIPE) + if (ret !=3D -EPIPE) { + dev_err(&dev->udev->dev, + "Failed to query (%s) UVC control %u on unit %u: %d (exp. %u).\n", + uvc_query_name(query), cs, unit, ret, size); return ret; + } =20 + /* reuse data[0] to request the error code. */ tmp =3D *(u8 *)data; =20 ret =3D __uvc_query_ctrl(dev, UVC_GET_CUR, 0, intfnum, --=20 b4 0.11.0-dev-d93f8