From patchwork Tue Jan 10 06:33:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: sutar.mounesh@gmail.com X-Patchwork-Id: 9506471 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 42D8060231 for ; Tue, 10 Jan 2017 06:36:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 396AF284DA for ; Tue, 10 Jan 2017 06:36:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2CC6C284F4; Tue, 10 Jan 2017 06:36:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=no version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 64030284DA for ; Tue, 10 Jan 2017 06:36:01 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 8366C2672B1; Tue, 10 Jan 2017 07:36:00 +0100 (CET) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id C056B267290; Tue, 10 Jan 2017 07:33:39 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id DACCF267290; Tue, 10 Jan 2017 07:33:30 +0100 (CET) Received: from mail-wj0-f195.google.com (mail-wj0-f195.google.com [209.85.210.195]) by alsa0.perex.cz (Postfix) with ESMTP id 5245E266DB0; Tue, 10 Jan 2017 07:33:25 +0100 (CET) Received: by mail-wj0-f195.google.com with SMTP id dh1so6219977wjb.3; Mon, 09 Jan 2017 22:33:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=LDuf+sXHo3XMJmfu5V5wKbu2PNFhIyOBdrWbjHgL7IE=; b=A8dm6rYecAqBHO4V4uxjYV9u15QZIW7jaNa5H4D6UwVDz7xp7kaHOQcYHanOM8hO8N 2MRnGsdGMjCy5pMdUewEOSMaVvVWAGcbMzjkBnMXq+vuE+OlSs4C2kv0ZumsAh4VfEA1 pXhUjdMw4ylimJGrfHE4HQYKsT3BbWf2wkz5YwzjUxqqOaCV7h4rDReGaAeRyv6rAQ9C 8gsQ2sYvavP0Zb5vrj6yVHyqeNtf8WbYNzkKFSt9nS0HGlfyxf0ngiqxkyxSJI1lOK2P FYvSPJkZ8BbpFnAFeXoZemHlFQdN7X/VR33cDLWI/YbwKOxTPZdUMV7ztHp70rVEYRU0 sHrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=LDuf+sXHo3XMJmfu5V5wKbu2PNFhIyOBdrWbjHgL7IE=; b=mux72El6f5hQnqFLBwnm3THEII24q4ZTEqKECRLBRJBR8dwlEHbeXA9r5NRpWiqcpq 13LCqWPZ+S+xgemVUEYWEzM0o1n5LuXX/bOlBE9vvXr+JDI1/20C9DVhIm6Byp/SeqWW a5xlXOkPVfzFUxdIujC+R2gF/pXo+wFR4UN/mrhtFmmxRd+0hTLdJk2u25NrO6VjAiM+ 9peTaqIyqRAwNAZPGqy6QvRvfMFcxDEBzLfSEkT6eI9GouhKg9GsqVBayTjC7YcC1m0i pcdF6WYvZdI1RsMYZNQY8efuFpo2uEBUtEMxOFq0DlQYo7Mq6mhLe8jaZ16FXKc1COux /uZw== X-Gm-Message-State: AIkVDXKCCAAhs2r1PQWK9yDJm3O+z3hXJDdvoWJYTL6C8hh8tHv88yjj9ExfHFDL90wbgA== X-Received: by 10.194.74.6 with SMTP id p6mr726829wjv.39.1484030005584; Mon, 09 Jan 2017 22:33:25 -0800 (PST) Received: from msutar-VirtualBox.inp.mentorg.com ([139.181.35.34]) by smtp.gmail.com with ESMTPSA id 203sm22647351wmf.21.2017.01.09.22.33.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 09 Jan 2017 22:33:25 -0800 (PST) From: sutar.mounesh@gmail.com To: patch@alsa-project.org Date: Tue, 10 Jan 2017 12:03:17 +0530 Message-Id: <1484029997-11107-1-git-send-email-sutar.mounesh@gmail.com> X-Mailer: git-send-email 2.7.4 Cc: Mounesh Sutar , alsa-devel@alsa-project.org, mounesh_sutar@mentor.com Subject: [alsa-devel] [PATCH 1/4] alsa-lib:pcm: returning semop error code for semaphore up/down failures. X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mounesh Sutar Signed-off-by: Mounesh Sutar diff --git a/src/pcm/pcm_direct.h b/src/pcm/pcm_direct.h index 91e816c..aee38c5 100644 --- a/src/pcm/pcm_direct.h +++ b/src/pcm/pcm_direct.h @@ -263,7 +263,10 @@ static inline int snd_pcm_direct_semaphore_down(snd_pcm_direct_t *dmix, int sem_ { struct sembuf op[2] = { { sem_num, 0, 0 }, { sem_num, 1, SEM_UNDO } }; int err = semop(dmix->semid, op, 2); - if (err == 0) dmix->locked[sem_num]++; + if (err == 0) + dmix->locked[sem_num]++; + else if (err == -1) + err = -errno; return err; } @@ -271,7 +274,10 @@ static inline int snd_pcm_direct_semaphore_up(snd_pcm_direct_t *dmix, int sem_nu { struct sembuf op = { sem_num, -1, SEM_UNDO | IPC_NOWAIT }; int err = semop(dmix->semid, &op, 1); - if (err == 0) dmix->locked[sem_num]--; + if (err == 0) + dmix->locked[sem_num]--; + else if (err == -1) + err = -errno; return err; }