From patchwork Thu May 20 09:21:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 445330 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 65B79C43600 for ; Thu, 20 May 2021 11:09:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4679F60C41 for ; Thu, 20 May 2021 11:09:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239062AbhETLLQ (ORCPT ); Thu, 20 May 2021 07:11:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:54234 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240147AbhETLJL (ORCPT ); Thu, 20 May 2021 07:09:11 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5B7C961940; Thu, 20 May 2021 10:06:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621505196; bh=y1KZOimxnzrONNjyUcvByZsk2dyLGwJrGm9ar+YMXgY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MP/F9xv/8ETLjdQV/YX5HtQpO0NxF3hhKyHmHmGAQqpyhB11iAA0r5MMIoNkNX2d9 5P/ePAoZ/wycIJOWPuwYPe7D0qt18BtK1VS52Ur+Xcc6p5OOmafxHttUdkhgexocJZ vDwzp1g8k4DG3Tj6AJmnDIzsqmCswLv5mXbqBbOg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sean Young , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 4.4 025/190] media: ite-cir: check for receive overflow Date: Thu, 20 May 2021 11:21:29 +0200 Message-Id: <20210520092103.007082724@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092102.149300807@linuxfoundation.org> References: <20210520092102.149300807@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sean Young [ Upstream commit 28c7afb07ccfc0a939bb06ac1e7afe669901c65a ] It's best if this condition is reported. Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/rc/ite-cir.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c index 63165d324fff..7d3e50d94d86 100644 --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -292,8 +292,14 @@ static irqreturn_t ite_cir_isr(int irq, void *data) /* read the interrupt flags */ iflags = dev->params.get_irq_causes(dev); + /* Check for RX overflow */ + if (iflags & ITE_IRQ_RX_FIFO_OVERRUN) { + dev_warn(&dev->rdev->dev, "receive overflow\n"); + ir_raw_event_reset(dev->rdev); + } + /* check for the receive interrupt */ - if (iflags & (ITE_IRQ_RX_FIFO | ITE_IRQ_RX_FIFO_OVERRUN)) { + if (iflags & ITE_IRQ_RX_FIFO) { /* read the FIFO bytes */ rx_bytes = dev->params.get_rx_bytes(dev, rx_buf,