From: Daniel Walker I couldn't find any users, so removing it.. Signed-off-by: Daniel Walker Cc: Karsten Keil Signed-off-by: Andrew Morton --- drivers/isdn/i4l/isdn_tty.c | 1 - include/linux/isdn.h | 1 - 2 files changed, 2 deletions(-) diff -puN drivers/isdn/i4l/isdn_tty.c~drivers-isdn-i4l-isdn_ttyc-remove-write_sem drivers/isdn/i4l/isdn_tty.c --- a/drivers/isdn/i4l/isdn_tty.c~drivers-isdn-i4l-isdn_ttyc-remove-write_sem +++ a/drivers/isdn/i4l/isdn_tty.c @@ -1915,7 +1915,6 @@ isdn_tty_modem_init(void) info->owner = THIS_MODULE; #endif spin_lock_init(&info->readlock); - init_MUTEX(&info->write_sem); sprintf(info->last_cause, "0000"); sprintf(info->last_num, "none"); info->last_dir = 0; diff -puN include/linux/isdn.h~drivers-isdn-i4l-isdn_ttyc-remove-write_sem include/linux/isdn.h --- a/include/linux/isdn.h~drivers-isdn-i4l-isdn_ttyc-remove-write_sem +++ a/include/linux/isdn.h @@ -507,7 +507,6 @@ typedef struct modem_info { struct ktermios normal_termios; /* For saving termios structs */ struct ktermios callout_termios; wait_queue_head_t open_wait, close_wait; - struct semaphore write_sem; spinlock_t readlock; } modem_info; _