static int configure_port()

in eisa_enumerator.c [167:201]

• 30 lines of code
• 5 McCabe index (conditional complexity)

static int configure_port(const unsigned char *buf, struct resource *io_parent,
		     char *board)
{
	int len;
	u_int8_t c;
	int i;
	struct resource *res;
	int result;
	
	len=0;
	
	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
		c = get_8(buf+len);
		
		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
			res->name = board;
			res->start = get_16(buf+len+1);
			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
			res->flags = IORESOURCE_IO;
			pr_cont("ioports %pR ", res);
			result = request_resource(io_parent, res);
			if (result < 0) {
				printk(KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
				return result;
			}
		}

		len+=3;      
		if (!(c & HPEE_PORT_MORE)) {
			break;
		}
	}
	
	return len;
}