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udev: free rule structure on error

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This commit is contained in:
Václav Pavlín 2012-09-21 14:54:30 +02:00 committed by Kay Sievers
parent cb32f0141e
commit 0820a4f0f6
1 changed files with 14 additions and 18 deletions
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32
src/udev/udev-rules.c
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@ -1728,30 +1728,24 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names)
/* init token array and string buffer */
rules->tokens = malloc(PREALLOC_TOKEN * sizeof(struct token));
if (rules->tokens == NULL) {
free(rules);
return NULL;
}
if (rules->tokens == NULL)
return udev_rules_unref(rules);
rules->token_max = PREALLOC_TOKEN;
rules->buf = malloc(PREALLOC_STRBUF);
if (rules->buf == NULL) {
free(rules->tokens);
free(rules);
return NULL;
}
if (rules->buf == NULL)
return udev_rules_unref(rules);
rules->buf_max = PREALLOC_STRBUF;
/* offset 0 is always '\0' */
rules->buf[0] = '\0';
rules->buf_cur = 1;
rules->trie_nodes = malloc(PREALLOC_TRIE * sizeof(struct trie_node));
if (rules->trie_nodes == NULL) {
free(rules->buf);
free(rules->tokens);
free(rules);
return NULL;
}
if (rules->trie_nodes == NULL)
return udev_rules_unref(rules);
rules->trie_nodes_max = PREALLOC_TRIE;
/* offset 0 is the trie root, with an empty string */
memset(rules->trie_nodes, 0x00, sizeof(struct trie_node));
@ -1763,21 +1757,23 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names)
NULL);
if (!rules->dirs) {
log_error("failed to build config directory array");
return NULL;
return udev_rules_unref(rules);
}
if (!path_strv_canonicalize(rules->dirs)) {
log_error("failed to canonicalize config directories\n");
return NULL;
return udev_rules_unref(rules);
}
strv_uniq(rules->dirs);
rules->dirs_ts_usec = calloc(strv_length(rules->dirs), sizeof(long long));
if(!rules->dirs_ts_usec)
return udev_rules_unref(rules);
udev_rules_check_timestamp(rules);
r = conf_files_list_strv(&files, ".rules", (const char **)rules->dirs);
if (r < 0) {
log_error("failed to enumerate rules files: %s\n", strerror(-r));
return NULL;
return udev_rules_unref(rules);
}
/*