diff options
Diffstat (limited to 'drivers/char/tty_io.c')
| -rw-r--r-- | drivers/char/tty_io.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index d33e5ab06177..224f271d8cbe 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -1817,8 +1817,10 @@ got_driver: /* check whether we're reopening an existing tty */ tty = tty_driver_lookup_tty(driver, inode, index); - if (IS_ERR(tty)) + if (IS_ERR(tty)) { + mutex_unlock(&tty_mutex); return PTR_ERR(tty); + } } if (tty) { @@ -2160,13 +2162,12 @@ static int fionbio(struct file *file, int __user *p) if (get_user(nonblock, p)) return -EFAULT; - /* file->f_flags is still BKL protected in the fs layer - vomit */ - lock_kernel(); + spin_lock(&file->f_lock); if (nonblock) file->f_flags |= O_NONBLOCK; else file->f_flags &= ~O_NONBLOCK; - unlock_kernel(); + spin_unlock(&file->f_lock); return 0; } |
