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install: fix memory leak if GREEDY_REALLOC() fails

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This commit is contained in:
David Tardon 2023-04-14 09:43:43 +02:00
parent 13524b29a2
commit 52c788e6e0
1 changed files with 11 additions and 6 deletions
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17
src/shared/install.c
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@ -78,14 +78,19 @@ static bool install_info_has_also(const InstallInfo *i) {
return !strv_isempty(i->also);
}
static void unit_file_preset_rule_done(UnitFilePresetRule *rule) {
assert(rule);
free(rule->pattern);
strv_free(rule->instances);
}
void unit_file_presets_freep(UnitFilePresets *p) {
if (!p)
return;
for (size_t i = 0; i < p->n_rules; i++) {
free(p->rules[i].pattern);
strv_free(p->rules[i].instances);
}
for (size_t i = 0; i < p->n_rules; i++)
unit_file_preset_rule_done(&p->rules[i]);
free(p->rules);
p->n_rules = 0;
@ -3241,7 +3246,7 @@ static int read_presets(RuntimeScope scope, const char *root_dir, UnitFilePreset
for (;;) {
_cleanup_free_ char *line = NULL;
UnitFilePresetRule rule = {};
_cleanup_(unit_file_preset_rule_done) UnitFilePresetRule rule = {};
const char *parameter;
char *l;
@ -3296,7 +3301,7 @@ static int read_presets(RuntimeScope scope, const char *root_dir, UnitFilePreset
if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1))
return -ENOMEM;
ps.rules[ps.n_rules++] = rule;
ps.rules[ps.n_rules++] = TAKE_STRUCT(rule);
continue;
}