static ssize_t punc_show()

in speakup/kobjects.c [459:494]

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

static ssize_t punc_show(struct kobject *kobj, struct kobj_attribute *attr,
			 char *buf)
{
	int i;
	char *cp = buf;
	struct st_var_header *p_header;
	struct punc_var_t *var;
	struct st_bits_data *pb;
	short mask;
	unsigned long flags;

	p_header = spk_var_header_by_name(attr->attr.name);
	if (!p_header) {
		pr_warn("p_header is null, attr->attr.name is %s\n",
			attr->attr.name);
		return -EINVAL;
	}

	var = spk_get_punc_var(p_header->var_id);
	if (!var) {
		pr_warn("var is null, p_header->var_id is %i\n",
			p_header->var_id);
		return -EINVAL;
	}

	spin_lock_irqsave(&speakup_info.spinlock, flags);
	pb = (struct st_bits_data *)&spk_punc_info[var->value];
	mask = pb->mask;
	for (i = 33; i < 128; i++) {
		if (!(spk_chartab[i] & mask))
			continue;
		*cp++ = (char)i;
	}
	spin_unlock_irqrestore(&speakup_info.spinlock, flags);
	return cp - buf;
}