Adding check to typec_altmode_get_partner() to prevent
potential NULL pointer dereference.
Reported-by: Vladimir Yerilov <openmindead@gmail.com>
Fixes: ad74b8649bea ("usb: typec: ucsi: Preliminary support for alternate modes")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
const struct typec_altmode *
typec_altmode_get_partner(struct typec_altmode *adev)
{
- return &to_altmode(adev)->partner->adev;
+ return adev ? &to_altmode(adev)->partner->adev : NULL;
}
EXPORT_SYMBOL_GPL(typec_altmode_get_partner);