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authorJohan Hovold <johan@kernel.org>2016-11-08 13:24:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-10 14:41:25 +0100
commit6f8ada1292904c8299daa019634b3cddcf2a31c3 (patch)
treec9cb8f3d7dcf8748e48d37bc5a0c70d5a7a9f786 /drivers/tty
parent5c31ef91c06db7800ad573174bd92be4df34ecb2 (diff)
downloadlinux-6f8ada1292904c8299daa019634b3cddcf2a31c3.tar.bz2
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.c2
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;