diff options
Diffstat (limited to 'drivers/usb/roles/class.c')
| -rw-r--r-- | drivers/usb/roles/class.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c index d7aa913ceb8a..c58a12c147f4 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> @@ -21,6 +22,7 @@ static const struct class role_class = { struct usb_role_switch { struct device dev; + struct lock_class_key key; struct mutex lock; /* device lock*/ struct module *module; /* the module this device depends on */ enum usb_role role; @@ -326,6 +328,8 @@ static void usb_role_switch_release(struct device *dev) { struct usb_role_switch *sw = to_role_switch(dev); + mutex_destroy(&sw->lock); + lockdep_unregister_key(&sw->key); kfree(sw); } @@ -364,7 +368,8 @@ usb_role_switch_register(struct device *parent, if (!sw) return ERR_PTR(-ENOMEM); - mutex_init(&sw->lock); + lockdep_register_key(&sw->key); + mutex_init_with_key(&sw->lock, &sw->key); sw->allow_userspace_control = desc->allow_userspace_control; sw->usb2_port = desc->usb2_port; |