static ssize_t eisa_eeprom_read()

in eisa_eeprom.c [25:50]

• 22 lines of code
• 6 McCabe index (conditional complexity)

static ssize_t eisa_eeprom_read(struct file * file,
			      char __user *buf, size_t count, loff_t *ppos )
{
	unsigned char *tmp;
	ssize_t ret;
	int i;
	
	if (*ppos < 0 || *ppos >= HPEE_MAX_LENGTH)
		return 0;
	
	count = *ppos + count < HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos;
	tmp = kmalloc(count, GFP_KERNEL);
	if (tmp) {
		for (i = 0; i < count; i++)
			tmp[i] = readb(eisa_eeprom_addr+(*ppos)++);

		if (copy_to_user (buf, tmp, count))
			ret = -EFAULT;
		else
			ret = count;
		kfree (tmp);
	} else
		ret = -ENOMEM;
	
	return ret;
}