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[209.132.180.67]) by mx.google.com with ESMTP id b78-v6si61946666pfj.2.2018.06.11.02.52.13; Mon, 11 Jun 2018 02:52:27 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932830AbeFKJv3 (ORCPT + 99 others); Mon, 11 Jun 2018 05:51:29 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:1901 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932775AbeFKJvD (ORCPT ); Mon, 11 Jun 2018 05:51:03 -0400 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 w5B9nZ3s008471; Mon, 11 Jun 2018 11:50:39 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2jg4bwga70-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 11 Jun 2018 11:50:39 +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 0053941; Mon, 11 Jun 2018 09:50:38 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id CB09D24E1; Mon, 11 Jun 2018 09:50:38 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 11 Jun 2018 11:50:38 +0200 Received: from localhost (10.201.23.73) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 11 Jun 2018 11:50:37 +0200 From: Hugues Fruchet To: Maxime Coquelin , Alexandre Torgue , Mauro Carvalho Chehab , "Hans Verkuil" CC: , , , Benjamin Gaignard , Yannick Fertre , Hugues Fruchet Subject: [PATCH 2/4] media: stm32-dcmi: return buffer in error state on dma error Date: Mon, 11 Jun 2018 11:50:25 +0200 Message-ID: <1528710627-8566-3-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1528710627-8566-1-git-send-email-hugues.fruchet@st.com> References: <1528710627-8566-1-git-send-email-hugues.fruchet@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.201.23.73] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-06-11_04:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return buffer to V4L2 in error state if DMA error occurs. Signed-off-by: Hugues Fruchet --- drivers/media/platform/stm32/stm32-dcmi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c index a3fbfac..6ccf195 100644 --- a/drivers/media/platform/stm32/stm32-dcmi.c +++ b/drivers/media/platform/stm32/stm32-dcmi.c @@ -262,6 +262,9 @@ static void dcmi_dma_callback(void *param) break; case DMA_ERROR: dev_err(dcmi->dev, "%s: Received DMA_ERROR\n", __func__); + + /* Return buffer to V4L2 in error state */ + dcmi_buffer_done(dcmi, buf, 0, -EIO); break; case DMA_COMPLETE: dev_dbg(dcmi->dev, "%s: Received DMA_COMPLETE\n", __func__); -- 1.9.1