From patchwork Thu Jun 22 15:12:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugues FRUCHET X-Patchwork-Id: 9804679 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 C69D360329 for ; Thu, 22 Jun 2017 15:14:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B5F692856F for ; Thu, 22 Jun 2017 15:14:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA6A1285E1; Thu, 22 Jun 2017 15:14:33 +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 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 38BA82856F for ; Thu, 22 Jun 2017 15:14:33 +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=h+AQvWNDcRyWBDFCuJj2KUmxsU9jY+WsgZTgSOn+3nI=; b=bzgY0Q4/Owej/2 mIeDswSwqm32DeDxsHHv0epBfQhFtKFtyrQ+CTFYOlyBmtW2qL1ls5Xa5CK06TPKLSynlyYXdoJ3J FBq5+UgrpzcCqOERebVKN7VkrXWXrj7BjClVOLHZRsBJFTrgWGXiJr323Rn3dsZPDkaNV/Gu6cKoy 4Q5MRVepBX7DrcuLEGZbBDykYxH0ZFQAzWReVzRvaDHSh0U8pv/uNq9Xd1nPM7LTnhIvj/IjWfqK3 Q+Fy+24M2dFKVq8fmYyVvBXb36yiAwhgpoiZrgH2RJpbkNEnRD7EmfRDzo+pdAd1X/x4Tq3giZnMj d0SNtT82MBCChEIUc5jQ==; 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 1dO3oV-0005sD-42; Thu, 22 Jun 2017 15:14:31 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dO3ng-00051I-EL for linux-arm-kernel@lists.infradead.org; Thu, 22 Jun 2017 15:13:44 +0000 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v5MF9neQ001802; Thu, 22 Jun 2017 17:13:14 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 2b8ckw99eq-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 22 Jun 2017 17:13:14 +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 CCBCB3A; Thu, 22 Jun 2017 15:13:13 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id AC71B2648; Thu, 22 Jun 2017 15:13:13 +0000 (GMT) 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; Thu, 22 Jun 2017 17:13:13 +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: Thu, 22 Jun 2017 17:12:47 +0200 Message-ID: <1498144371-13310-2-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1498144371-13310-1-git-send-email-hugues.fruchet@st.com> References: <1498144371-13310-1-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=2017-06-22_06:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170622_081340_853854_DC407EFB X-CRM114-Status: UNSURE ( 8.47 ) 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 83d32a5..0dd5d1c 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);