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| author |   Miroslaw Walukiewicz <miroslaw.walukiewicz@intel.com> | 2009-04-21 16:16:48 -0700 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2009-04-21 16:16:48 -0700 |
| commit | 5d1af5c83232c5a02b9dc0fe43053b4ddc005224 (patch) | |
| tree | 705fa258b696855d355fa8ebf2af84ced5f3fa29 /drivers/infiniband/hw/nes | |
| parent | RDMA/nes: Remove root_256()'s unused pbl_count_256 parameter (diff) | |
| download | linux-dev-5d1af5c83232c5a02b9dc0fe43053b4ddc005224.tar.xz linux-dev-5d1af5c83232c5a02b9dc0fe43053b4ddc005224.zip | |
RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq()
In error paths where a CQ is not created, pbl is not freeed properly.
In nes_destroy_cq(), add the corresponding check for nescq->mcrqf to
not call nes_free_resource() when it is already done in nes_create_cq().
Signed-off-by: Miroslaw Walukiewicz <miroslaw.walukiewicz@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/nes')
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_verbs.c | 26 | ||||
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_verbs.h | 1 |
2 files changed, 26 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 504e31d9f50c..8b460c2ce892 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1627,6 +1627,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff; else nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1; + nescq->mcrqf = nes_ucontext->mcrqf; nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); } nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", @@ -1682,6 +1683,12 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } + nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1705,6 +1712,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1722,6 +1734,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1774,6 +1791,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-EIO); @@ -1855,7 +1877,9 @@ static int nes_destroy_cq(struct ib_cq *ib_cq) set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16))); - nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); + if (!nescq->mcrqf) + nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); + atomic_set(&cqp_request->refcount, 2); nes_post_cqp_request(nesdev, cqp_request); diff --git a/drivers/infiniband/hw/nes/nes_verbs.h b/drivers/infiniband/hw/nes/nes_verbs.h index 5e48f67fbe8d..41c07f29f7c9 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.h +++ b/drivers/infiniband/hw/nes/nes_verbs.h @@ -112,6 +112,7 @@ struct nes_cq { spinlock_t lock; u8 virtual_cq; u8 pad[3]; + u32 mcrqf; }; struct nes_wq { |