diff options
| -rw-r--r-- | fs/locks.c | 46 |
1 files changed, 12 insertions, 34 deletions
diff --git a/fs/locks.c b/fs/locks.c index b49e853a9c7b..4cd25781b0a4 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -388,6 +388,18 @@ static int flock64_to_posix_lock(struct file *filp, struct file_lock *fl, fl->fl_ops = NULL; fl->fl_lmops = NULL; + /* Ensure that fl->fl_filp has compatible f_mode */ + switch (l->l_type) { + case F_RDLCK: + if (!(filp->f_mode & FMODE_READ)) + return -EBADF; + break; + case F_WRLCK: + if (!(filp->f_mode & FMODE_WRITE)) + return -EBADF; + break; + } + return assign_type(fl, l->l_type); } @@ -2025,23 +2037,6 @@ again: file_lock->fl_flags |= FL_SLEEP; } - error = -EBADF; - switch (flock.l_type) { - case F_RDLCK: - if (!(filp->f_mode & FMODE_READ)) - goto out; - break; - case F_WRLCK: - if (!(filp->f_mode & FMODE_WRITE)) - goto out; - break; - case F_UNLCK: - break; - default: - error = -EINVAL; - goto out; - } - error = do_lock_file_wait(filp, cmd, file_lock); /* @@ -2143,23 +2138,6 @@ again: file_lock->fl_flags |= FL_SLEEP; } - error = -EBADF; - switch (flock.l_type) { - case F_RDLCK: - if (!(filp->f_mode & FMODE_READ)) - goto out; - break; - case F_WRLCK: - if (!(filp->f_mode & FMODE_WRITE)) - goto out; - break; - case F_UNLCK: - break; - default: - error = -EINVAL; - goto out; - } - error = do_lock_file_wait(filp, cmd, file_lock); /* |