diff options
Diffstat (limited to 'drivers/usb/gadget/function/u_hid.h')
| -rw-r--r-- | drivers/usb/gadget/function/u_hid.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/u_hid.h b/drivers/usb/gadget/function/u_hid.h index 3edfc9567ab..aaa0e368a15 100644 --- a/drivers/usb/gadget/function/u_hid.h +++ b/drivers/usb/gadget/function/u_hid.h @@ -27,6 +27,13 @@ struct f_hid_opts { unsigned short report_desc_length; unsigned char *report_desc; bool report_desc_alloc; + + /* + * Protect the data form concurrent access by read/write + * and create symlink/remove symlink. + */ + struct mutex lock; + int refcnt; }; int ghid_setup(struct usb_gadget *g, int count); |