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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Sean Young <sean@mess.org>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 148/239] media: igorplugusb: receiver overflow should be reported
Date:   Mon, 24 Jan 2022 19:43:06 +0100
Message-Id: <20220124183947.801806290@linuxfoundation.org>
In-Reply-To: <20220124183943.102762895@linuxfoundation.org>
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From: Sean Young <sean@mess.org>

[ Upstream commit 8fede658e7ddb605bbd68ed38067ddb0af033db4 ]

Without this, some IR will be missing mid-stream and we might decode
something which never really occurred.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/igorplugusb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/igorplugusb.c b/drivers/media/rc/igorplugusb.c
index f563ddd7f7392..98a13532a5968 100644
--- a/drivers/media/rc/igorplugusb.c
+++ b/drivers/media/rc/igorplugusb.c
@@ -73,9 +73,11 @@ static void igorplugusb_irdata(struct igorplugusb *ir, unsigned len)
 	if (start >= len) {
 		dev_err(ir->dev, "receive overflow invalid: %u", overflow);
 	} else {
-		if (overflow > 0)
+		if (overflow > 0) {
 			dev_warn(ir->dev, "receive overflow, at least %u lost",
 								overflow);
+			ir_raw_event_reset(ir->rc);
+		}
 
 		do {
 			rawir.duration = ir->buf_in[i] * 85333;
-- 
2.34.1