[PATCH 5/7] audit: remove redundant watch refcount

From: Richard Guy Briggs
Date: Thu Oct 02 2014 - 22:06:30 EST


Remove extra layer of audit_{get,put}_watch() calls.

Signed-off-by: Richard Guy Briggs <rgb@xxxxxxxxxx>
---
kernel/audit_watch.c | 5 +----
kernel/auditfilter.c | 7 -------
2 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index f209448..c707afb 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -203,7 +203,6 @@ int audit_to_watch(struct audit_krule *krule, char *path, int len, u32 op)
if (IS_ERR(watch))
return PTR_ERR(watch);

- audit_get_watch(watch);
krule->watch = watch;

return 0;
@@ -306,7 +305,6 @@ static void audit_update_watch(struct audit_parent *parent,
* new watch.
*/
audit_put_watch(nentry->rule.watch);
- audit_get_watch(nwatch);
nentry->rule.watch = nwatch;
list_add(&nentry->rule.rlist, &nwatch->rules);
list_add_rcu(&nentry->list, &audit_inode_hash[h]);
@@ -392,8 +390,7 @@ static void audit_add_to_parent(struct audit_krule *krule,

watch_found = 1;

- /* put krule's and initial refs to temporary watch */
- audit_put_watch(watch);
+ /* put krule's ref to temporary watch */
audit_put_watch(watch);

audit_get_watch(w);
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index facd704..5675916 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -563,8 +563,6 @@ 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);
@@ -942,8 +940,6 @@ static inline int audit_add_rule(struct audit_entry *entry)
return 0;

error:
- if (watch)
- audit_put_watch(watch); /* tmp watch, matches initial get */
return err;
}

@@ -951,7 +947,6 @@ 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;
@@ -992,8 +987,6 @@ 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 */

--
1.7.1

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