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staging: speakup: use native error codes
The mapping as follows: E_RANGE -> ERANGE E_UNDEF -> ENODATA E_TOOLONG -> E2BIG SET_DEFAULT -> ERESTART As a side effect it fixes a bug in spk_var_store() where return code was mistakenly compared to negative value instead of positive. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -619,7 +619,7 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
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len = E_SET;
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value = simple_strtol(cp, NULL, 10);
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ret = spk_set_num_var(value, param, len);
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if (ret == E_RANGE) {
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if (ret == -ERANGE) {
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var_data = param->data;
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pr_warn("value for %s out of range, expect %d to %d\n",
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attr->attr.name,
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@ -637,7 +637,7 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
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cp = (char *) buf;
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cp[len] = '\0';
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ret = spk_set_string_var(buf, param, len);
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if (ret == E_TOOLONG)
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if (ret == -E2BIG)
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pr_warn("value too long for %s\n",
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attr->attr.name);
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break;
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@ -670,7 +670,7 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
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}
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spk_unlock(flags);
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if (ret == SET_DEFAULT)
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if (ret == -ERESTART)
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pr_info("%s reset to default value\n", attr->attr.name);
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return count;
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}
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@ -44,11 +44,6 @@
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#define IS_CHAR(x, type) (spk_chartab[((u_char)x)]&type)
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#define IS_TYPE(x, type) ((spk_chartab[((u_char)x)]&type) == type)
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#define SET_DEFAULT -4
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#define E_RANGE -3
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#define E_TOOLONG -2
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#define E_UNDEF -1
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extern int speakup_thread(void *data);
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extern void spk_reset_default_chars(void);
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extern void spk_reset_default_chartab(void);
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@ -184,19 +184,19 @@ int spk_set_num_var(int input, struct st_var_header *var, int how)
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char buf[32];
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char *cp;
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struct var_t *var_data = var->data;
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if (var_data == NULL)
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return E_UNDEF;
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return -ENODATA;
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if (how == E_NEW_DEFAULT) {
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if (input < var_data->u.n.low || input > var_data->u.n.high)
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ret = E_RANGE;
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else
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var_data->u.n.default_val = input;
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return ret;
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return -ERANGE;
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var_data->u.n.default_val = input;
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return 0;
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}
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if (how == E_DEFAULT) {
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val = var_data->u.n.default_val;
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ret = SET_DEFAULT;
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ret = -ERESTART;
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} else {
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if (how == E_SET)
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val = input;
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@ -207,7 +207,7 @@ int spk_set_num_var(int input, struct st_var_header *var, int how)
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else if (how == E_DEC)
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val -= input;
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if (val < var_data->u.n.low || val > var_data->u.n.high)
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return E_RANGE;
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return -ERANGE;
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}
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var_data->u.n.value = val;
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if (var->var_type == VAR_TIME && p_val != NULL) {
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@ -246,25 +246,25 @@ int spk_set_num_var(int input, struct st_var_header *var, int how)
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int spk_set_string_var(const char *page, struct st_var_header *var, int len)
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{
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int ret = 0;
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struct var_t *var_data = var->data;
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if (var_data == NULL)
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return E_UNDEF;
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return -ENODATA;
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if (len > MAXVARLEN)
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return -E_TOOLONG;
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return -E2BIG;
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if (!len) {
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if (!var_data->u.s.default_val)
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return 0;
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ret = SET_DEFAULT;
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if (!var->p_val)
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var->p_val = var_data->u.s.default_val;
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if (var->p_val != var_data->u.s.default_val)
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strcpy((char *)var->p_val, var_data->u.s.default_val);
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return -ERESTART;
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} else if (var->p_val)
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strcpy((char *)var->p_val, page);
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else
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return -E_TOOLONG;
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return ret;
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return -E2BIG;
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return 0;
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}
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/* spk_set_mask_bits sets or clears the punc/delim/repeat bits,
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