diff options
| author |   Johan Hovold <johan@kernel.org> | 2016-11-08 13:24:53 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-10 14:41:25 +0100 |
| commit | 6f8ada1292904c8299daa019634b3cddcf2a31c3 (patch) | |
| tree | c9cb8f3d7dcf8748e48d37bc5a0c70d5a7a9f786 /drivers/tty | |
| parent | 8250: FIX Fourth port offset of Pericom PI7C9X7954 boards (diff) | |
| download | linux-dev-6f8ada1292904c8299daa019634b3cddcf2a31c3.tar.xz linux-dev-6f8ada1292904c8299daa019634b3cddcf2a31c3.zip | |
tty: amiserial: fix invalid user-pointer check
Drop invalid user-pointer check from TIOCGSERIAL handler.
A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/amiserial.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 208f573495dc..dfbb974927f2 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1012,8 +1012,6 @@ static int get_serial_info(struct tty_struct *tty, struct serial_state *state, { struct serial_struct tmp; - if (!retinfo) - return -EFAULT; memset(&tmp, 0, sizeof(tmp)); tty_lock(tty); tmp.line = tty->index; |