From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 2035FC43617 for ; Mon, 3 May 2021 17:07:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDA1E611AD for ; Mon, 3 May 2021 17:07:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235675AbhECRE5 (ORCPT ); Mon, 3 May 2021 13:04:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:43304 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235090AbhECQzr (ORCPT ); Mon, 3 May 2021 12:55:47 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 75FDC61953; Mon, 3 May 2021 16:42:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620060176; bh=y1KZOimxnzrONNjyUcvByZsk2dyLGwJrGm9ar+YMXgY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nhsw69Qrdbi5xgVkU9P2UWkHgG4Wv7WI73180QAUosxiyZ4vIyEq8BlseyjNbe0LB HQmFw1O6hZbh3oQaosOzowJpt3OKktyMqjAwyrAH+B/xTWnKmGtfFpKiy7a4IOoHSH v1i6lWZJ9ALnRY2A16dWNc3o1jzmbXjONjgh4q2WlknIkfsaJ1zBEI93+r1Gy4eBpW VstPg81xjKLSreI/HzDedUEyzkYHDwU9J29JuvQ07tbsmWd8tOWmUbK7IE7qLhu4G/ QOxSyhYW1FfOnvyUkQvbqyiMJvbHHGABRpIwaVx2zcJEkwkCGeHDSN8zKrVjuJOl9s aXgZjrqYB1v5w== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sean Young , Mauro Carvalho Chehab , Sasha Levin , linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 02/24] media: ite-cir: check for receive overflow Date: Mon, 3 May 2021 12:42:30 -0400 Message-Id: <20210503164252.2854487-2-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210503164252.2854487-1-sashal@kernel.org> References: <20210503164252.2854487-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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, -- 2.30.2