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RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq()

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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>
This commit is contained in:
Miroslaw Walukiewicz 2009-04-21 16:16:48 -07:00 committed by Roland Dreier
parent cc005fa20c
commit 5d1af5c832
2 changed files with 26 additions and 1 deletions
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26
drivers/infiniband/hw/nes/nes_verbs.c
View File

@ -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);

1
drivers/infiniband/hw/nes/nes_verbs.h
View File

@ -112,6 +112,7 @@ struct nes_cq {
spinlock_t lock;
u8 virtual_cq;
u8 pad[3];
u32 mcrqf;
};
struct nes_wq {