[PATCH v2] rpmsg: glink: Avoid infinite loop on intent for missing channel

[Bjorn Andersson]

In the event that an intent advertisement arrives on an unknown channel
the fifo is not advanced, resulting in the same message being handled
over and over.

Fixes: dacbb35e930f ("rpmsg: glink: Receive and store the remote intent buffers")
Signed-off-by: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx>
---

Changes since v1:
- Don't drop packet if the following memory allocation fails.

 drivers/rpmsg/qcom_glink_native.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 89c3381f06c3..b6c60bf86009 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -966,6 +966,7 @@ static void qcom_glink_handle_intent(struct qcom_glink *glink,
 	spin_unlock_irqrestore(&glink->idr_lock, flags);
 	if (!channel) {
 		dev_err(glink->dev, "intents for non-existing channel\n");
+		qcom_glink_rx_advance(glink, ALIGN(msglen, 8));
 		return;
 	}
 
-- 
2.25.1