| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 024/165] hv_netvsc: cancel subchannel setup before halting device | Date | Thu, 24 May 2018 11:37:10 +0200 |
| |
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stephen Hemminger <stephen@networkplumber.org>
[ Commit a7483ec0267c69b34e818738da60b392623da94b upstream. ]
Block setup of multiple channels earlier in the teardown process. This avoids possible races between halt and subchannel initialization.
Suggested-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/hyperv/rndis_filter.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -1340,6 +1340,9 @@ void rndis_filter_device_remove(struct h { 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);
|