Hans de Goede eeb4fd46eb usb: roles: Call try_module_get() from usb_role_switch_find_by_fwnode() ... commit 3a2a91a2d5 upstream. usb_role_switch_find_by_fwnode() returns a reference to the role-switch which must be put by calling usb_role_switch_put(). usb_role_switch_put() calls module_put(sw->dev.parent->driver->owner), add a matching try_module_get() to usb_role_switch_find_by_fwnode(), making it behave the same as the other usb_role_switch functions which return a reference. This avoids a WARN_ON being hit at kernel/module.c:1158 due to the module-refcount going below 0. Fixes: c6919d5e0c ("usb: roles: Add usb_role_switch_find_by_fwnode()") Cc: stable <stable@vger.kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20210409124136.65591-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-14 09:49:55 +02:00
..
class.c	usb: roles: Call try_module_get() from usb_role_switch_find_by_fwnode()	2021-05-14 09:49:55 +02:00
intel-xhci-usb-role-switch.c	usb: roles: Provide the switch drivers handle to the switch in the API	2020-03-04 11:12:50 +01:00
Kconfig
Makefile