hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
authorVitaly Kuznetsov <vkuznets@redhat.com>
Sat, 3 Dec 2016 20:34:32 +0000 (12:34 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 6 Dec 2016 10:10:54 +0000 (11:10 +0100)
commitabd1026da4a7700a8db370947f75cd17b6ae6f76
tree547629e7f19d3a30165011bb4454b880f5ec74c7
parentf45be72c8ec0b85263d1fe1e6c681d8c87e198e6
hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()

"kernel BUG at drivers/hv/channel_mgmt.c:350!" is observed when hv_vmbus
module is unloaded. BUG_ON() was introduced in commit 85d9aa705184
("Drivers: hv: vmbus: add an API vmbus_hvsock_device_unregister()") as
vmbus_free_channels() codepath was apparently forgotten.

Fixes: 85d9aa705184 ("Drivers: hv: vmbus: add an API vmbus_hvsock_device_unregister()")

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hv/channel_mgmt.c