Commit 4dfc109c authored Nov 08, 2016 by Johan Hovold Committed by Greg Kroah-Hartman Nov 10, 2016

staging: greybus: uart: 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>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 52d0744d

drivers/staging/greybus/uart.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -623,9 +623,6 @@ static int get_serial_info(struct gb_tty *gb_tty,
		{
		struct serial_struct tmp;

		if (!info)
		return -EINVAL;

		memset(&tmp, 0, sizeof(tmp));
		tmp.flags = ASYNC_LOW_LATENCY \| ASYNC_SKIP_TEST;
		tmp.type = PORT_16550A;

Admin message