[PATCH 3.16 371/372] TTY: n_hdlc, fix lockdep false positive

3.16.42-rc2 review patch. If anyone has any objections, please let me know. -- From: Jiri Slaby commit e9b736d88af1a143530565929390cadf036dc799 upstream. The class of 4 n_hdls buf locks is the same because a single function n_hdlc_buf_list_init is used to init

[PATCH 3.16 371/372] TTY: n_hdlc, fix lockdep false positive

3.16.42-rc2 review patch. If anyone has any objections, please let me know. -- From: Jiri Slaby commit e9b736d88af1a143530565929390cadf036dc799 upstream. The class of 4 n_hdls buf locks is the same because a single function n_hdlc_buf_list_init is used to init all the locks.