diff options
| author | Dmitry Shmidt <dimitrysh@google.com> | 2016-08-11 15:12:05 -0700 |
|---|---|---|
| committer | Dmitry Shmidt <dimitrysh@google.com> | 2016-08-11 15:12:05 -0700 |
| commit | 1f369b24e2987c1b29c88ffcbd0ca99cddabe01c (patch) | |
| tree | 9890a7ff909f71bc4f252f227ecb2532ace2d7fe /drivers/xen/xenbus/xenbus_dev_frontend.c | |
| parent | b558f17a13b10761eb6f838e713425b9e83f8a01 (diff) | |
| parent | 133cec911c639d2cdf544ed602442951f702e08c (diff) | |
Merge tag 'v4.4.17' into android-4.4.y
This is the 4.4.17 stable release
Diffstat (limited to 'drivers/xen/xenbus/xenbus_dev_frontend.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_dev_frontend.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 9433e46518c8..531e76474983 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -316,11 +316,18 @@ static int xenbus_write_transaction(unsigned msg_type, rc = -ENOMEM; goto out; } + } else { + list_for_each_entry(trans, &u->transactions, list) + if (trans->handle.id == u->u.msg.tx_id) + break; + if (&trans->list == &u->transactions) + return -ESRCH; } reply = xenbus_dev_request_and_reply(&u->u.msg); if (IS_ERR(reply)) { - kfree(trans); + if (msg_type == XS_TRANSACTION_START) + kfree(trans); rc = PTR_ERR(reply); goto out; } @@ -333,12 +340,7 @@ static int xenbus_write_transaction(unsigned msg_type, list_add(&trans->list, &u->transactions); } } else if (u->u.msg.type == XS_TRANSACTION_END) { - list_for_each_entry(trans, &u->transactions, list) - if (trans->handle.id == u->u.msg.tx_id) - break; - BUG_ON(&trans->list == &u->transactions); list_del(&trans->list); - kfree(trans); } |