superhyway: Handle device_register() retval properly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 7d873b3..4d0282b 100644 (file)
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -107,16 +107,17 @@ int superhyway_add_devices(struct superhyway_bus *bus,
 static int __init superhyway_init(void)
 {
        struct superhyway_bus *bus;
-       int ret = 0;
+       int ret;
 
-       device_register(&superhyway_bus_device);
+       ret = device_register(&superhyway_bus_device);
+       if (unlikely(ret))
+               return ret;
 
        for (bus = superhyway_channels; bus->ops; bus++)
                ret |= superhyway_scan_bus(bus);
 
        return ret;
 }
-
 postcore_initcall(superhyway_init);
 
 static const struct superhyway_device_id *