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Code Issues Releases Wiki Activity

IB/iser: Fix RX/TX CQ resource leak on error flow

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When failing to allocate TX CQ we already allocated RX CQ, so we need to make
sure we release it. Also, when failing to register notification to the RX CQ
we currently leak both RX and TX CQs of the current index, fix that too.

Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Roi Dayan 2014-09-02 17:08:41 +03:00 committed by Roland Dreier
parent 52addcf9d6
commit c33b15f00b
1 changed files with 14 additions and 10 deletions
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24
drivers/infiniband/ulp/iser/iser_verbs.c
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@ -73,7 +73,7 @@ static int iser_create_device_ib_res(struct iser_device *device)
{
struct iser_cq_desc *cq_desc;
struct ib_device_attr *dev_attr = &device->dev_attr;
int ret, i, j;
int ret, i;
ret = ib_query_device(device->ib_device, dev_attr);
if (ret) {
@ -125,16 +125,20 @@ static int iser_create_device_ib_res(struct iser_device *device)
iser_cq_event_callback,
(void *)&cq_desc[i],
ISER_MAX_RX_CQ_LEN, i);
if (IS_ERR(device->rx_cq[i]))
if (IS_ERR(device->rx_cq[i])) {
device->rx_cq[i] = NULL;
goto cq_err;
}
device->tx_cq[i] = ib_create_cq(device->ib_device,
NULL, iser_cq_event_callback,
(void *)&cq_desc[i],
ISER_MAX_TX_CQ_LEN, i);
if (IS_ERR(device->tx_cq[i]))
if (IS_ERR(device->tx_cq[i])) {
device->tx_cq[i] = NULL;
goto cq_err;
}
if (ib_req_notify_cq(device->rx_cq[i], IB_CQ_NEXT_COMP))
goto cq_err;
@ -160,14 +164,14 @@ static int iser_create_device_ib_res(struct iser_device *device)
handler_err:
ib_dereg_mr(device->mr);
dma_mr_err:
for (j = 0; j < device->cqs_used; j++)
tasklet_kill(&device->cq_tasklet[j]);
for (i = 0; i < device->cqs_used; i++)
tasklet_kill(&device->cq_tasklet[i]);
cq_err:
for (j = 0; j < i; j++) {
if (device->tx_cq[j])
ib_destroy_cq(device->tx_cq[j]);
if (device->rx_cq[j])
ib_destroy_cq(device->rx_cq[j]);
for (i = 0; i < device->cqs_used; i++) {
if (device->tx_cq[i])
ib_destroy_cq(device->tx_cq[i]);
if (device->rx_cq[i])
ib_destroy_cq(device->rx_cq[i]);
}
ib_dealloc_pd(device->pd);
pd_err: