tree 9a3a56da7e1730bbc93f16b23bdd28a08f356f18
parent 16c4cb19fa85c648a803752eb63cac0ef69231c2
author Heikki Krogerus <heikki.krogerus@linux.intel.com> 1537343884 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1537443301 +0200

usb: typec: mux: Take care of driver module reference counting

Functions typec_mux_get() and typec_switch_get() already
make sure that the mux device reference count is
incremented, but the same must be done to the driver module
as well to prevent the drivers from being unloaded in the
middle of operation.

This fixes a potential "BUG: unable to handle kernel paging
request at ..." from happening.

Fixes: 93dd2112c7b2 ("usb: typec: mux: Get the mux identifier from function parameter")
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>