Messages in this thread Patch in this message | | | From | Johan Hovold <> | Subject | [PATCH 1/3] tty: amiserial: fix invalid user-pointer check | Date | Tue, 8 Nov 2016 13:24:53 +0100 |
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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> --- drivers/tty/amiserial.c | 2 -- 1 file changed, 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; -- 2.7.3
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