Block setup of multiple channels earlier in the teardown
process. This avoids possible races between halt and subchannel
initialization.
Suggested-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Signed-off-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
---
drivers/net/hyperv/rndis_filter.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c3ca191fea7f..1cba767c6453 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1340,6 +1340,9 @@ void rndis_filter_device_remove(struct hv_device *dev,
{
struct rndis_device *rndis_dev = net_dev->extension;
+ /* Don't try and setup sub channels if about to halt */
+ cancel_work_sync(&net_dev->subchan_work);
+
/* Halt and release the rndis device */
rndis_filter_halt_device(rndis_dev);
--
2.16.1
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