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authorMimi Zohar <zohar@linux.vnet.ibm.com>2012-01-17 15:40:02 -0500
committerJames Morris <jmorris@namei.org>2012-01-17 18:41:30 -0500
commit6ac6172a935d1faf7ef259802267657bc0007a62 (patch)
tree034c1a79a3d401926f6b968eb270d34f561e50f1 /security/keys/encrypted-keys/masterkey_trusted.c
parentee0b31a25a010116f44fca6c96f4516d417793dd (diff)
encrypted-keys: fix rcu and sparse messages
Enabling CONFIG_PROVE_RCU and CONFIG_SPARSE_RCU_POINTER resulted in "suspicious rcu_dereference_check() usage!" and "incompatible types in comparison expression (different address spaces)" messages. Access the masterkey directly when holding the rwsem. Changelog v1: - Use either rcu_read_lock()/rcu_derefence_key()/rcu_read_unlock() or remove the unnecessary rcu_derefence() - David Howells Reported-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys/encrypted-keys/masterkey_trusted.c')
-rw-r--r--security/keys/encrypted-keys/masterkey_trusted.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/keys/encrypted-keys/masterkey_trusted.c b/security/keys/encrypted-keys/masterkey_trusted.c
index 8c16c3e472e7..013f7e5d3a2f 100644
--- a/security/keys/encrypted-keys/masterkey_trusted.c
+++ b/security/keys/encrypted-keys/masterkey_trusted.c
@@ -39,7 +39,7 @@ struct key *request_trusted_key(const char *trusted_desc,
39 goto error; 39 goto error;
40 40
41 down_read(&tkey->sem); 41 down_read(&tkey->sem);
42 tpayload = rcu_dereference(tkey->payload.data); 42 tpayload = tkey->payload.data;
43 *master_key = tpayload->key; 43 *master_key = tpayload->key;
44 *master_keylen = tpayload->key_len; 44 *master_keylen = tpayload->key_len;
45error: 45error: