pandora: defconfig: update

[pandora-kernel.git] / crypto / algif_skcipher.c

diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 397205c..45fa6bd 100644 (file)
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -446,13 +446,6 @@ static int skcipher_recvmsg(struct kiocb *unused, struct socket *sock,
                char __user *from = iov->iov_base;
 
                while (seglen) {
-                       sgl = list_first_entry(&ctx->tsgl,
-                                              struct skcipher_sg_list, list);
-                       sg = sgl->sg;
-
-                       while (!sg->length)
-                               sg++;
-
                        used = ctx->used;
                        if (!used) {
                                err = skcipher_wait_for_data(sk, flags);
@@ -474,6 +467,13 @@ static int skcipher_recvmsg(struct kiocb *unused, struct socket *sock,
                        if (!used)
                                goto free;
 
+                       sgl = list_first_entry(&ctx->tsgl,
+                                              struct skcipher_sg_list, list);
+                       sg = sgl->sg;
+
+                       while (!sg->length)
+                               sg++;
+
                        ablkcipher_request_set_crypt(&ctx->req, sg,
                                                     ctx->rsgl.sg, used,
                                                     ctx->iv);
@@ -551,22 +551,23 @@ static struct proto_ops algif_skcipher_ops = {
 
 static int skcipher_check_key(struct socket *sock)
 {
-       int err;
+       int err = 0;
        struct sock *psk;
        struct alg_sock *pask;
        struct skcipher_tfm *tfm;
        struct sock *sk = sock->sk;
        struct alg_sock *ask = alg_sk(sk);
 
+       lock_sock(sk);
        if (ask->refcnt)
-               return 0;
+               goto unlock_child;
 
        psk = ask->parent;
        pask = alg_sk(ask->parent);
        tfm = pask->private;
 
        err = -ENOKEY;
-       lock_sock(psk);
+       lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
        if (!tfm->has_key)
                goto unlock;
 
@@ -580,6 +581,8 @@ static int skcipher_check_key(struct socket *sock)
 
 unlock:
        release_sock(psk);
+unlock_child:
+       release_sock(sk);
 
        return err;
 }