i2400m: debugfs return code is wrong

Missing a break
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/net/wimax/i2400m/debugfs.c

@@ -209,6 +209,7 @@ int debugfs_i2400m_reset_set(void *data, u64 val)
 		result = i2400m_reset(i2400m, rt);
 		if (result >= 0)
 			result = 0;
+		break;
 	default:
 		result = -EINVAL;
 	}