bcma: Fail probe if GPIO subdriver fails

We currently register the BCMA core even if the GPIO portions
fail. There is no reason for this: the GPIO should register
just fine, if it fails the BCMA driver should fail.

We already gracefully handle the case where the GPIO driver is
not compiled in.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221028093000.239020-1-linus.walleij@linaro.org

drivers/bcma/main.c

@@ -344,8 +344,10 @@ static int bcma_register_devices(struct bcma_bus *bus)
 	err = bcma_gpio_init(&bus->drv_cc);
 	if (err == -ENOTSUPP)
 		bcma_debug(bus, "GPIO driver not activated\n");
-	else if (err)
+	else if (err) {
 		bcma_err(bus, "Error registering GPIO driver: %i\n", err);
+		return err;
+	}
 
 	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
 		err = bcma_chipco_watchdog_register(&bus->drv_cc);