superhyway: Handle device_register() retval properly.

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

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 7d873b3b0513..4d0282b821b5 100644
--- 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 *