From patchwork Fri Jul 28 10:04:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugues FRUCHET X-Patchwork-Id: 9868315 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 AC5416035E for ; Fri, 28 Jul 2017 10:06:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9F08F28789 for ; Fri, 28 Jul 2017 10:06:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 93FD1288AF; Fri, 28 Jul 2017 10:06:11 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1C8BA28789 for ; Fri, 28 Jul 2017 10:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VKpbJvP/rH8cp0Q7mQx/HlVT2P/GKnrsFCRKcyPGBaY=; b=GwjBtwvFAYETBl iat5MWM9e3xMcoDMZxIZeWanrWBmP9sGYBnGsAEBoFgQS0A2ijljIquto9UfekjonI/fTPCU78HwG mAsqG2f+i3jSHR4B3c6ugCeE5JB0Bf61vq1T9aPOzOzcMe/i9s6m+C3mg2pRGqFAip2AkAO6p4VGm uDsxqjtF3SiywYzmL4/ro3uHElaNS08MN26gW5/M3koQ5Wp60XojKgy1GVaLkc3nkoVP/E2FntOov C0Ake4LP8ZCcvtwWlCryCKZXT2VFyVwEuKJ3KC6ms6zkNQHv0whogmxnc7xgzaB+9FN/622BSbfe4 ESxQPKHKon4Y1HyRbcog==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1db29l-0008KR-3F; Fri, 28 Jul 2017 10:06:05 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1db29R-00083R-Im for linux-arm-kernel@lists.infradead.org; Fri, 28 Jul 2017 10:05:47 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v6S9xTBp018463; Fri, 28 Jul 2017 12:05:17 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-.pphosted.com with ESMTP id 2c01xd8fg1-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 28 Jul 2017 12:05:17 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id C353F31; Fri, 28 Jul 2017 10:05:16 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id A1FAB2504; Fri, 28 Jul 2017 10:05:16 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by SAFEX1HUBCAS21.st.com (10.75.90.44) with Microsoft SMTP Server (TLS) id 14.3.339.0; Fri, 28 Jul 2017 12:05:16 +0200 Received: from localhost (10.201.23.73) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.339.0; Fri, 28 Jul 2017 12:05:16 +0200 From: Hugues Fruchet To: Maxime Coquelin , Alexandre Torgue , Mauro Carvalho Chehab , "Hans Verkuil" Subject: [PATCH v1 1/5] [media] stm32-dcmi: catch dma submission error Date: Fri, 28 Jul 2017 12:04:58 +0200 Message-ID: <1501236302-18097-2-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1501236302-18097-1-git-send-email-hugues.fruchet@st.com> References: <1501236302-18097-1-git-send-email-hugues.fruchet@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.73] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-07-28_04:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170728_030545_963867_4E8603F1 X-CRM114-Status: UNSURE ( 7.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Yannick Fertre , Benjamin Gaignard , Hugues Fruchet , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Test cookie return by dmaengine_submit() and return error if any. Signed-off-by: Hugues Fruchet --- drivers/media/platform/stm32/stm32-dcmi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c index 24ef888..716b3db 100644 --- a/drivers/media/platform/stm32/stm32-dcmi.c +++ b/drivers/media/platform/stm32/stm32-dcmi.c @@ -295,6 +295,10 @@ static int dcmi_start_dma(struct stm32_dcmi *dcmi, /* Push current DMA transaction in the pending queue */ dcmi->dma_cookie = dmaengine_submit(desc); + if (dma_submit_error(dcmi->dma_cookie)) { + dev_err(dcmi->dev, "%s: DMA submission failed\n", __func__); + return -ENXIO; + } dma_async_issue_pending(dcmi->dma_chan);