From patchwork Fri Jul 16 12:57:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dafna Hirschfeld X-Patchwork-Id: 478647 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 346E7C07E95 for ; Fri, 16 Jul 2021 12:57:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 10165613F2 for ; Fri, 16 Jul 2021 12:57:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239791AbhGPNAI (ORCPT ); Fri, 16 Jul 2021 09:00:08 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:34194 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239590AbhGPNAH (ORCPT ); Fri, 16 Jul 2021 09:00:07 -0400 Received: from guri.fritz.box (unknown [IPv6:2a02:810a:880:f54:f07d:7270:7174:27c4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: dafna) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 099121F4407D; Fri, 16 Jul 2021 13:57:11 +0100 (BST) From: Dafna Hirschfeld To: linux-media@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com, dafna.hirschfeld@collabora.com, helen.koike@collabora.com, ezequiel@collabora.com, hverkuil@xs4all.nl, kernel@collabora.com, dafna3@gmail.com, sakari.ailus@linux.intel.com, linux-rockchip@lists.infradead.org, mchehab@kernel.org, tfiga@chromium.org Subject: [patch v4l-utils 1/2] v4l2-ctl: print specific error upon failure Date: Fri, 16 Jul 2021 14:57:02 +0200 Message-Id: <20210716125703.699-2-dafna.hirschfeld@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210716125703.699-1-dafna.hirschfeld@collabora.com> References: <20210716125703.699-1-dafna.hirschfeld@collabora.com> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org When an operation fails, print an error message that specify the specific operation that failed prefixed with the current function name. This makes debugging less painful. Signed-off-by: Dafna Hirschfeld --- utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp index 62424e4c..0f28a537 100644 --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp @@ -1153,8 +1153,10 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf q.g_type() == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; bool is_meta = q.g_type() == V4L2_BUF_TYPE_META_OUTPUT; - if (q.obtain_bufs(&fd)) + if (q.obtain_bufs(&fd)) { + fprintf(stderr, "%s q.obtain_bufs failed\n", __func__); return QUEUE_ERROR; + } fd.g_fmt(fmt, q.g_type()); { @@ -1226,8 +1228,10 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf for (unsigned i = 0; i < q.g_buffers(); i++) { cv4l_buffer buf(q); - if (fd.querybuf(buf, i)) + if (fd.querybuf(buf, i)) { + fprintf(stderr, "%s fd.querybuf failed\n", __func__); return QUEUE_ERROR; + } buf.update(q, i); for (unsigned j = 0; j < q.g_num_planes(); j++) @@ -2720,11 +2724,21 @@ static void streaming_set_cap2out(cv4l_fd &fd, cv4l_fd &out_fd) fprintf(stderr, "mismatch between number of planes\n"); goto done; } + if (in.obtain_bufs(&fd)) { + fprintf(stderr, "%s: in.obtain_bufs failed\n", __func__); + goto done; + } - if (in.obtain_bufs(&fd) || - in.queue_all(&fd) || - do_setup_out_buffers(out_fd, out, file[OUT], false, false) == QUEUE_ERROR) + if (in.queue_all(&fd)) { + fprintf(stderr, "%s: in.queue_all failed\n", __func__); goto done; + } + + + if (do_setup_out_buffers(out_fd, out, file[OUT], false, false) == QUEUE_ERROR) { + fprintf(stderr, "%s: do_setup_out_buffers failed\n", __func__); + goto done; + } fps_ts[CAP].determine_field(fd.g_fd(), in.g_type()); fps_ts[OUT].determine_field(fd.g_fd(), out.g_type());