提交 9a5f04bf 编写于 作者: J Jesper Juhl 提交者: Linus Torvalds

[PATCH] selinux: kfree cleanup

kfree(NULL) is legal.
Signed-off-by: NJesper Juhl <juhl-lkml@dif.dk>
Acked-by: NStephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 a2ba192c
......@@ -1658,9 +1658,8 @@ static int selinux_bprm_secureexec (struct linux_binprm *bprm)
static void selinux_bprm_free_security(struct linux_binprm *bprm)
{
struct bprm_security_struct *bsec = bprm->security;
kfree(bprm->security);
bprm->security = NULL;
kfree(bsec);
}
extern struct vfsmount *selinuxfs_mount;
......
......@@ -951,7 +951,6 @@ static int sel_make_bools(void)
u32 sid;
/* remove any existing files */
if (bool_pending_values)
kfree(bool_pending_values);
sel_remove_bools(dir);
......@@ -997,10 +996,8 @@ static int sel_make_bools(void)
out:
free_page((unsigned long)page);
if (names) {
for (i = 0; i < num; i++) {
if (names[i])
for (i = 0; i < num; i++)
kfree(names[i]);
}
kfree(names);
}
return ret;
......
......@@ -166,7 +166,6 @@ static void cond_list_destroy(struct cond_node *list)
void cond_policydb_destroy(struct policydb *p)
{
if (p->bool_val_to_struct != NULL)
kfree(p->bool_val_to_struct);
avtab_destroy(&p->te_cond_avtab);
cond_list_destroy(p->cond_list);
......@@ -174,7 +173,6 @@ void cond_policydb_destroy(struct policydb *p)
int cond_init_bool_indexes(struct policydb *p)
{
if (p->bool_val_to_struct)
kfree(p->bool_val_to_struct);
p->bool_val_to_struct = (struct cond_bool_datum**)
kmalloc(p->p_bools.nprim * sizeof(struct cond_bool_datum*), GFP_KERNEL);
......@@ -185,7 +183,6 @@ int cond_init_bool_indexes(struct policydb *p)
int cond_destroy_bool(void *key, void *datum, void *p)
{
if (key)
kfree(key);
kfree(datum);
return 0;
......
......@@ -590,16 +590,11 @@ void policydb_destroy(struct policydb *p)
hashtab_destroy(p->symtab[i].table);
}
for (i = 0; i < SYM_NUM; i++) {
if (p->sym_val_to_name[i])
for (i = 0; i < SYM_NUM; i++)
kfree(p->sym_val_to_name[i]);
}
if (p->class_val_to_struct)
kfree(p->class_val_to_struct);
if (p->role_val_to_struct)
kfree(p->role_val_to_struct);
if (p->user_val_to_struct)
kfree(p->user_val_to_struct);
avtab_destroy(&p->te_avtab);
......
......@@ -1705,10 +1705,8 @@ int security_get_bools(int *len, char ***names, int **values)
err:
if (*names) {
for (i = 0; i < *len; i++)
if ((*names)[i])
kfree((*names)[i]);
}
if (*values)
kfree(*values);
goto out;
}
......
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