diff options
Diffstat (limited to 'drivers/usb/roles/class.c')
| -rw-r--r-- | drivers/usb/roles/class.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c index d7aa913ceb8a..7aca1ef7f44c 100644 --- a/drivers/usb/roles/class.c +++ b/drivers/usb/roles/class.c @@ -11,6 +11,7 @@ #include <linux/usb/role.h> #include <linux/property.h> #include <linux/device.h> +#include <linux/lockdep.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> @@ -33,6 +34,8 @@ struct usb_role_switch { usb_role_switch_set_t set; usb_role_switch_get_t get; bool allow_userspace_control; + + struct lock_class_key key; }; #define to_role_switch(d) container_of(d, struct usb_role_switch, dev) @@ -396,6 +399,9 @@ usb_role_switch_register(struct device *parent, sw->registered = true; + lockdep_register_key(&sw->key); + lockdep_set_class(&sw->lock, &sw->key); + /* TODO: Symlinks for the host port and the device controller. */ return sw; @@ -412,6 +418,9 @@ void usb_role_switch_unregister(struct usb_role_switch *sw) { if (IS_ERR_OR_NULL(sw)) return; + + lockdep_unregister_key(&sw->key); + sw->registered = false; if (dev_fwnode(&sw->dev)) component_del(&sw->dev, &connector_ops); |