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Message-Id: <20210520092132.904503655@linuxfoundation.org>
Date: Thu, 20 May 2021 11:16:54 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Sean Young <sean@...s.org>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 045/425] media: ite-cir: check for receive overflow
From: Sean Young <sean@...s.org>
[ Upstream commit 28c7afb07ccfc0a939bb06ac1e7afe669901c65a ]
It's best if this condition is reported.
Signed-off-by: Sean Young <sean@...s.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
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 de77d22c30a7..18f3718315a8 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -285,8 +285,14 @@ 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
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