selinux: propagate error codes in cond_read_list()
These are passed back when the security module gets loaded.
The original code always returned -1 (-EPERM) on error but after this
patch it can return -EINVAL, or -ENOMEM or propagate the error code from
cond_read_node(). cond_read_node() still returns -1 all the time, but I
fix that in a later patch.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Stephen D. Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index 4a4e35c..775418a 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -445,8 +445,8 @@
int rc;
rc = next_entry(buf, fp, sizeof buf);
- if (rc < 0)
- return -1;
+ if (rc)
+ return rc;
len = le32_to_cpu(buf[0]);
@@ -455,11 +455,13 @@
goto err;
for (i = 0; i < len; i++) {
+ rc = -ENOMEM;
node = kzalloc(sizeof(struct cond_node), GFP_KERNEL);
if (!node)
goto err;
- if (cond_read_node(p, node, fp) != 0)
+ rc = cond_read_node(p, node, fp);
+ if (rc)
goto err;
if (i == 0)
@@ -472,7 +474,7 @@
err:
cond_list_destroy(p->cond_list);
p->cond_list = NULL;
- return -1;
+ return rc;
}
/* Determine whether additional permissions are granted by the conditional