diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_cq.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c index 392eeb394637..3efee341c9bc 100644 --- a/drivers/infiniband/hw/ipath/ipath_cq.c +++ b/drivers/infiniband/hw/ipath/ipath_cq.c @@ -158,10 +158,21 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, struct ib_ucontext *context, struct ib_udata *udata) { + struct ipath_ibdev *dev = to_idev(ibdev); struct ipath_cq *cq; struct ib_wc *wc; struct ib_cq *ret; + if (entries > ib_ipath_max_cqes) { + ret = ERR_PTR(-EINVAL); + goto bail; + } + + if (dev->n_cqs_allocated == ib_ipath_max_cqs) { + ret = ERR_PTR(-ENOMEM); + goto bail; + } + /* * Need to use vmalloc() if we want to support large #s of * entries. @@ -197,6 +208,8 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, ret = &cq->ibcq; + dev->n_cqs_allocated++; + bail: return ret; } @@ -211,9 +224,11 @@ bail: */ int ipath_destroy_cq(struct ib_cq *ibcq) { + struct ipath_ibdev *dev = to_idev(ibcq->device); struct ipath_cq *cq = to_icq(ibcq); tasklet_kill(&cq->comptask); + dev->n_cqs_allocated--; vfree(cq->queue); kfree(cq); |