KEYS: refcount bug fix
This patch fixes the key_ref leak, removes the unnecessary KEY_FLAG_KEEP
test before setting the flag, and cleans up the if/then brackets style
introduced in commit:
d3600bc KEYS: prevent keys from being removed from specified keyrings
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index e83ec6b..8f9f323 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -381,12 +381,11 @@
}
key = key_ref_to_ptr(key_ref);
+ ret = 0;
if (test_bit(KEY_FLAG_KEEP, &key->flags))
- return -EPERM;
- else {
+ ret = -EPERM;
+ else
key_revoke(key);
- ret = 0;
- }
key_ref_put(key_ref);
error:
@@ -432,12 +431,11 @@
invalidate:
key = key_ref_to_ptr(key_ref);
+ ret = 0;
if (test_bit(KEY_FLAG_KEEP, &key->flags))
ret = -EPERM;
- else {
+ else
key_invalidate(key);
- ret = 0;
- }
error_put:
key_ref_put(key_ref);
error:
@@ -1352,12 +1350,11 @@
okay:
key = key_ref_to_ptr(key_ref);
+ ret = 0;
if (test_bit(KEY_FLAG_KEEP, &key->flags))
ret = -EPERM;
- else {
+ else
key_set_timeout(key, timeout);
- ret = 0;
- }
key_put(key);
error: