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authorBjorn Andersson <quic_bjorande@quicinc.com>2023-02-15 02:42:31 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-03-10 11:33:45 +0300
commit09699f0e5b69a5ac6444974f7a956ad81b4026d3 (patch)
treea10f25ed471824703ea1180cb73abca6e5a588ba /drivers/rpmsg
parent5df521e0b2cb811e2f969f1a663017910e7edcef (diff)
downloadlinux-09699f0e5b69a5ac6444974f7a956ad81b4026d3.tar.xz
rpmsg: glink: Avoid infinite loop on intent for missing channel
[ Upstream commit 3e74ec2f39362bffbd42854acbb67c7f4cb808f9 ] 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@quicinc.com> Reviewed-by: Chris Lew <quic_clew@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230214234231.2069751-1-quic_bjorande@quicinc.com Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/rpmsg')
-rw-r--r--drivers/rpmsg/qcom_glink_native.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 115c0a1eddb1..bb917746ad4b 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -954,6 +954,7 @@ 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;
}