diff options
author | Prasad J Pandit <pjp@fedoraproject.org> | 2018-12-13 01:00:37 +0530 |
---|---|---|
committer | Marcel Apfelbaum <marcel.apfelbaum@gmail.com> | 2018-12-22 11:09:57 +0200 |
commit | 509f57c98e7536905bb4902363d0cba66ce7e089 (patch) | |
tree | 4071728fd4e6e62aecd9c21bfc15d206dbd3c546 /hw/rdma | |
parent | 2c858ce5da8ae6689c75182b73bc455a291cad41 (diff) | |
download | qemu-509f57c98e7536905bb4902363d0cba66ce7e089.zip qemu-509f57c98e7536905bb4902363d0cba66ce7e089.tar.gz qemu-509f57c98e7536905bb4902363d0cba66ce7e089.tar.bz2 |
pvrdma: release ring object in case of an error
create_cq and create_qp routines allocate ring object, but it's
not released in case of an error, leading to memory leakage.
Reported-by: Li Qiang <liq3ea@163.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Diffstat (limited to 'hw/rdma')
-rw-r--r-- | hw/rdma/vmw/pvrdma_cmd.c | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c index f236ac4..8992088 100644 --- a/hw/rdma/vmw/pvrdma_cmd.c +++ b/hw/rdma/vmw/pvrdma_cmd.c @@ -313,6 +313,14 @@ out: return rc; } +static void destroy_cq_ring(PvrdmaRing *ring) +{ + pvrdma_ring_free(ring); + /* ring_state was in slot 1, not 0 so need to jump back */ + rdma_pci_dma_unmap(ring->dev, --ring->ring_state, TARGET_PAGE_SIZE); + g_free(ring); +} + static int create_cq(PVRDMADev *dev, union pvrdma_cmd_req *req, union pvrdma_cmd_resp *rsp) { @@ -335,6 +343,10 @@ static int create_cq(PVRDMADev *dev, union pvrdma_cmd_req *req, rc = rdma_rm_alloc_cq(&dev->rdma_dev_res, &dev->backend_dev, cmd->cqe, &resp->cq_handle, ring); + if (rc) { + destroy_cq_ring(ring); + } + resp->cqe = cmd->cqe; return rc; @@ -356,10 +368,7 @@ static int destroy_cq(PVRDMADev *dev, union pvrdma_cmd_req *req, } ring = (PvrdmaRing *)cq->opaque; - pvrdma_ring_free(ring); - /* ring_state was in slot 1, not 0 so need to jump back */ - rdma_pci_dma_unmap(PCI_DEVICE(dev), --ring->ring_state, TARGET_PAGE_SIZE); - g_free(ring); + destroy_cq_ring(ring); rdma_rm_dealloc_cq(&dev->rdma_dev_res, cmd->cq_handle); @@ -457,6 +466,17 @@ out: return rc; } +static void destroy_qp_rings(PvrdmaRing *ring) +{ + pr_dbg("sring=%p\n", &ring[0]); + pvrdma_ring_free(&ring[0]); + pr_dbg("rring=%p\n", &ring[1]); + pvrdma_ring_free(&ring[1]); + + rdma_pci_dma_unmap(ring->dev, ring->ring_state, TARGET_PAGE_SIZE); + g_free(ring); +} + static int create_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, union pvrdma_cmd_resp *rsp) { @@ -486,6 +506,7 @@ static int create_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, cmd->max_recv_sge, cmd->recv_cq_handle, rings, &resp->qpn); if (rc) { + destroy_qp_rings(rings); return rc; } @@ -558,13 +579,7 @@ static int destroy_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, rdma_rm_dealloc_qp(&dev->rdma_dev_res, cmd->qp_handle); ring = (PvrdmaRing *)qp->opaque; - pr_dbg("sring=%p\n", &ring[0]); - pvrdma_ring_free(&ring[0]); - pr_dbg("rring=%p\n", &ring[1]); - pvrdma_ring_free(&ring[1]); - - rdma_pci_dma_unmap(PCI_DEVICE(dev), ring->ring_state, TARGET_PAGE_SIZE); - g_free(ring); + destroy_qp_rings(ring); return 0; } |