This fixes NULL pointer dereference that happens if
component master is registered with empty component match
list.
Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@xxxxxxxxx>
Tested-by: John Stultz <john.stultz@xxxxxxxxxx>
Fixes: 730b49aac426 ("usb: typec: port-mapper: Convert to the component framework")
Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
---
drivers/usb/typec/port-mapper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/typec/port-mapper.c b/drivers/usb/typec/port-mapper.c
index b6e0c6acc628c..a7d507802509f 100644
--- a/drivers/usb/typec/port-mapper.c
+++ b/drivers/usb/typec/port-mapper.c
@@ -60,6 +60,8 @@ int typec_link_ports(struct typec_port *con)
return 0;
bus_for_each_dev(&acpi_bus_type, NULL, &arg, typec_port_match);
+ if (!arg.match)
+ return 0;
/*
* REVISIT: Now each connector can have only a single component master.
--
2.34.1
