diff options
| author | Andy King <acking@vmware.com> | 2013-01-10 15:41:40 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 12:07:39 -0800 |
| commit | 32b083a3fd1452b9d5aba8e781ca95b566f3e054 (patch) | |
| tree | 352be2ecd9e5d5aa3689a3b41336692b274711fd /drivers/misc/vmw_vmci/vmci_queue_pair.c | |
| parent | 42281d20cdf94a9d2aae67ee019f8bcc390ebed6 (diff) | |
| download | blackbird-op-linux-32b083a3fd1452b9d5aba8e781ca95b566f3e054.tar.gz blackbird-op-linux-32b083a3fd1452b9d5aba8e781ca95b566f3e054.zip | |
VMCI: Fix deref before NULL-check of queuepair ptr
Check for a valid queuepair ptr before trying to lock the queuepair (which will
deref it).
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andy King <acking@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/vmw_vmci/vmci_queue_pair.c')
| -rw-r--r-- | drivers/misc/vmw_vmci/vmci_queue_pair.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c index da47e457e158..6417a26df8d8 100644 --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c @@ -3355,11 +3355,11 @@ ssize_t vmci_qpair_dequev(struct vmci_qp *qpair, { ssize_t result; - qp_lock(qpair); - if (!qpair || !iov) return VMCI_ERROR_INVALID_ARGS; + qp_lock(qpair); + do { result = qp_dequeue_locked(qpair->produce_q, qpair->consume_q, |
