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audit: eliminate unnecessary extra layer of watch references

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The audit watch count was imbalanced, adding an unnecessary layer of watch
references.  Only add the second reference when it is added to a parent.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
This commit is contained in:
Richard Guy Briggs
2015-08-01 15:41:12 -04:00
committed by Paul Moore
parent 0b08c5e594
commit f8259b262b
2 changed files with 5 additions and 16 deletions
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16
kernel/auditfilter.c
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@@ -549,8 +549,6 @@ exit_nofree:
return entry;
exit_free:
if (entry->rule.watch)
audit_put_watch(entry->rule.watch); /* matches initial get */
if (entry->rule.tree)
audit_put_tree(entry->rule.tree); /* that's the temporary one */
audit_free_rule(entry);
@@ -881,7 +879,7 @@ static inline int audit_add_rule(struct audit_entry *entry)
/* normally audit_add_tree_rule() will free it on failure */
if (tree)
audit_put_tree(tree);
goto error;
return err;
}
if (watch) {
@@ -895,14 +893,14 @@ static inline int audit_add_rule(struct audit_entry *entry)
*/
if (tree)
audit_put_tree(tree);
goto error;
return err;
}
}
if (tree) {
err = audit_add_tree_rule(&entry->rule);
if (err) {
mutex_unlock(&audit_filter_mutex);
goto error;
return err;
}
}
@@ -933,11 +931,6 @@ static inline int audit_add_rule(struct audit_entry *entry)
#endif
mutex_unlock(&audit_filter_mutex);
return 0;
error:
if (watch)
audit_put_watch(watch); /* tmp watch, matches initial get */
return err;
}
@@ -945,7 +938,6 @@ error:
static inline int audit_del_rule(struct audit_entry *entry)
{
struct audit_entry *e;
struct audit_watch *watch = entry->rule.watch;
struct audit_tree *tree = entry->rule.tree;
struct list_head *list;
int ret = 0;
@@ -986,8 +978,6 @@ static inline int audit_del_rule(struct audit_entry *entry)
mutex_unlock(&audit_filter_mutex);
out:
if (watch)
audit_put_watch(watch); /* match initial get */
if (tree)
audit_put_tree(tree); /* that's the temporary one */