The node->cur_state and len can be read in a single call of next_entry().
And setting len before reading is a dead write so can be eliminated.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
security/selinux/ss/conditional.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index 377d148e7157..4766a38fae9a 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -402,19 +402,14 @@ static int cond_read_node(struct policydb *p, struct cond_node *node, void *fp)
int rc;
struct cond_expr *expr = NULL, *last = NULL;
- rc = next_entry(buf, fp, sizeof(u32));
+ rc = next_entry(buf, fp, sizeof(buf));
if (rc)
return rc;
node->cur_state = le32_to_cpu(buf[0]);
- len = 0;
- rc = next_entry(buf, fp, sizeof(u32));
- if (rc)
- return rc;
-
/* expr */
- len = le32_to_cpu(buf[0]);
+ len = le32_to_cpu(buf[1]);
for (i = 0; i < len; i++) {
rc = next_entry(buf, fp, sizeof(u32) * 2);
--
2.0.0
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