3f345e907a
The driver must make sure there is an actual connection before checking details about the USB Power Delivery contract. Those details are not valid unless there is a connection. This fixes NULL pointer dereference that is caused by an attempt to register bogus partner alternate mode that the firmware on some platform may report before the actual connection. Link: https://bugzilla.kernel.org/show_bug.cgi?id=215117 Fixes: 6cbe4b2d5a3f ("usb: typec: ucsi: Check the partner alt modes always if there is PD contract") Reported-by: Chris Hixon <linux-kernel-bugs@hixontech.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/eb34f98f-00ef-3238-2daa-80481116035d@leemhuis.info/ Link: https://lore.kernel.org/r/20211221140352.45501-1-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| altmodes | ||
| mux | ||
| tcpm | ||
| tipd | ||
| ucsi | ||
| bus.c | ||
| bus.h | ||
| class.c | ||
| class.h | ||
| hd3ss3220.c | ||
| Kconfig | ||
| Makefile | ||
| mux.c | ||
| mux.h | ||
| port-mapper.c | ||
| qcom-pmic-typec.c | ||
| stusb160x.c | ||