media: ite-cir: check for receive overflow

[ 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>

diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index 0c6229592e132de9046b7230f99a749ef5163729..e5c4a6941d26b8bee703c13de783cd8e7f41a923 100644 (file)
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -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,