nfs/blocklayout: make sure making a aligned read request

[sfrench/cifs-2.6.git] / crypto / crypto_user.c

diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 237f3795cfaaa1f988fadf5b07eefe3c44609091..43fe85f20d577b4f3d1bbd6576b6d752bc578531 100644 (file)
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -499,6 +499,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                if (link->dump == NULL)
                        return -EINVAL;
 
+               down_read(&crypto_alg_sem);
                list_for_each_entry(alg, &crypto_alg_list, cra_list)
                        dump_alloc += CRYPTO_REPORT_MAXSIZE;
 
@@ -508,8 +509,11 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                                .done = link->done,
                                .min_dump_alloc = dump_alloc,
                        };
-                       return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
+                       err = netlink_dump_start(crypto_nlsk, skb, nlh, &c);
                }
+               up_read(&crypto_alg_sem);
+
+               return err;
        }
 
        err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX,