From: Bjorn Andersson bjorn.andersson@linaro.org
commit 278bcb7300f61785dba63840bd2a8cf79f14554c upstream.
By just cancelling the deferred rx worker during GLINK instance teardown any pending deferred commands are leaked, so free them.
Fixes: b4f8e52b89f6 ("rpmsg: Introduce Qualcomm RPM glink driver") Cc: stable@vger.kernel.org Acked-by: Chris Lew clew@codeaurora.org Tested-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/rpmsg/qcom_glink_native.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
--- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -1562,6 +1562,18 @@ static void qcom_glink_work(struct work_ } }
+static void qcom_glink_cancel_rx_work(struct qcom_glink *glink) +{ + struct glink_defer_cmd *dcmd; + struct glink_defer_cmd *tmp; + + /* cancel any pending deferred rx_work */ + cancel_work_sync(&glink->rx_work); + + list_for_each_entry_safe(dcmd, tmp, &glink->rx_queue, node) + kfree(dcmd); +} + struct qcom_glink *qcom_glink_native_probe(struct device *dev, unsigned long features, struct qcom_glink_pipe *rx, @@ -1639,7 +1651,7 @@ void qcom_glink_native_remove(struct qco int ret;
disable_irq(glink->irq); - cancel_work_sync(&glink->rx_work); + qcom_glink_cancel_rx_work(glink);
ret = device_for_each_child(glink->dev, NULL, qcom_glink_remove_device); if (ret)