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media: ite-cir: check for receive overflow

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[ Upstream commit 28c7afb07ccfc0a939bb06ac1e7afe669901c65a ]

It's best if this condition is reported.

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>
This commit is contained in:
Sean Young 2021-02-22 09:08:35 +01:00 • committed by Greg Kroah-Hartman
commit a2e71d2d79
1 changed files with 7 additions and 1 deletions
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8
drivers/media/rc/ite-cir.c
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@ -276,8 +276,14 @@ 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,