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ucm: raise error when macro argument is already defined (used)

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Link: https://github.com/alsa-project/alsa-ucm-conf/pull/411
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2024-04-24 15:15:48 +02:00
parent 99499a6ebc
commit c6cd83bd0a
1 changed files with 5 additions and 1 deletions
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6
src/ucm/parser.c
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@ -446,13 +446,17 @@ static int evaluate_macro1(snd_use_case_mgr_t *uc_mgr,
err = snd_config_get_id(n, &id);
if (err < 0)
goto __err_path;
snprintf(name, sizeof(name), "__%s", id);
if (uc_mgr_get_variable(uc_mgr, name)) {
uc_error("Macro argument '%s' is already defined", name);
goto __err_path;
}
err = snd_config_get_ascii(n, &var);
if (err < 0)
goto __err_path;
err = uc_mgr_get_substituted_value(uc_mgr, &var2, var);
free(var);
if (err >= 0) {
snprintf(name, sizeof(name), "__%s", id);
err = uc_mgr_set_variable(uc_mgr, name, var2);
free(var2);
}