5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Akihiko Odaki <akihiko.odaki@xxxxxxxxx> commit 7464ff8bf2d762251b9537863db0e1caf9b0e402 upstream. The EC driver may not be initialized when cros_typec_probe is called, particulary when CONFIG_CROS_EC_CHARDEV=m. Signed-off-by: Akihiko Odaki <akihiko.odaki@xxxxxxxxx> Reviewed-by: Guenter Roeck <groeck@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220404041101.6276-1-akihiko.odaki@xxxxxxxxx Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx> Signed-off-by: Laura Nao <laura.nao@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/platform/chrome/cros_ec_typec.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -1123,6 +1123,9 @@ static int cros_typec_probe(struct platf } ec_dev = dev_get_drvdata(&typec->ec->ec->dev); + if (!ec_dev) + return -EPROBE_DEFER; + typec->typec_cmd_supported = !!cros_ec_check_features(ec_dev, EC_FEATURE_TYPEC_CMD); typec->needs_mux_ack = !!cros_ec_check_features(ec_dev, EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK);
