Commit c4e5ee5b authored Sep 03, 2020 by Sriharsha Allenki

usb: typec: Fix setting of invalid value of opmode



Setting opmode to invalid values would lead to a
paging fault failure when there is an access to the
power_operation_mode.

Prevent this by checking the validity of the value
that the opmode is being set.

Change-Id: I9863df1e84a947fb04e29d214c1dec61ccc5ee72
Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org>

parent 986ca5b1

drivers/usb/typec/class.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1369,7 +1369,8 @@ void typec_set_pwr_opmode(struct typec_port *port,
		{
		struct device *partner_dev;

		if (port->pwr_opmode == opmode)
		if ((port->pwr_opmode == opmode) \|\| (opmode < TYPEC_PWR_MODE_USB) \|\|
		(opmode > TYPEC_PWR_MODE_PD))
		return;

		port->pwr_opmode = opmode;