diff options
Diffstat (limited to 'drivers/char/briq_panel.c')
| -rw-r--r-- | drivers/char/briq_panel.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/char/briq_panel.c b/drivers/char/briq_panel.c index 555cd93c2ee5..f6718f05dad4 100644 --- a/drivers/char/briq_panel.c +++ b/drivers/char/briq_panel.c @@ -67,15 +67,15 @@ static void set_led(char state) static int briq_panel_open(struct inode *ino, struct file *filep) { - lock_kernel(); + tty_lock(); /* enforce single access, vfd_is_open is protected by BKL */ if (vfd_is_open) { - unlock_kernel(); + tty_unlock(); return -EBUSY; } vfd_is_open = 1; - unlock_kernel(); + tty_unlock(); return 0; } @@ -186,6 +186,7 @@ static const struct file_operations briq_panel_fops = { .write = briq_panel_write, .open = briq_panel_open, .release = briq_panel_release, + .llseek = noop_llseek, }; static struct miscdevice briq_panel_miscdev = { |