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IB/rdmavt,hfi1,qib: Fix memory leak 

rdi->ports has memory allocated in rvt_alloc_device(), but does not get
freed because the hfi1 and qib drivers drivers call ib_dealloc_device()
directly instead of going through rdmavt. Add a rvt_dealloc_device()
that frees rdi->ports and then calls ib_dealloc_device(). Switch hfi1
and qib drivers to calling rvt_dealloc_device() instead of
ib_dealloc_device() directly.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Brian Welty <brian.welty@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jubin John 2016-04-20 06:05:24 -07:00 committed by Doug Ledford
parent e88c9271d9
commit ea0e4ce3bc
4 changed files with 18 additions and 4 deletions
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4
drivers/infiniband/hw/qib/qib_init.c
View File

@ -1090,7 +1090,7 @@ void qib_free_devdata(struct qib_devdata *dd)
qib_dbg_ibdev_exit(&dd->verbs_dev);
#endif
free_percpu(dd->int_counter);
ib_dealloc_device(&dd->verbs_dev.rdi.ibdev);
rvt_dealloc_device(&dd->verbs_dev.rdi);
}
u64 qib_int_counter(struct qib_devdata *dd)
@ -1183,7 +1183,7 @@ struct qib_devdata *qib_alloc_devdata(struct pci_dev *pdev, size_t extra)
bail:
if (!list_empty(&dd->list))
list_del_init(&dd->list);
ib_dealloc_device(&dd->verbs_dev.rdi.ibdev);
rvt_dealloc_device(&dd->verbs_dev.rdi);
return ERR_PTR(ret);
}

13
drivers/infiniband/sw/rdmavt/vt.c
View File

@ -106,6 +106,19 @@ struct rvt_dev_info *rvt_alloc_device(size_t size, int nports)
}
EXPORT_SYMBOL(rvt_alloc_device);
/**
* rvt_dealloc_device - deallocate rdi
* @rdi: structure to free
*
* Free a structure allocated with rvt_alloc_device()
*/
void rvt_dealloc_device(struct rvt_dev_info *rdi)
{
kfree(rdi->ports);
ib_dealloc_device(&rdi->ibdev);
}
EXPORT_SYMBOL(rvt_dealloc_device);
static int rvt_query_device(struct ib_device *ibdev,
struct ib_device_attr *props,
struct ib_udata *uhw)

4
drivers/staging/rdma/hfi1/init.c
View File

@ -1007,7 +1007,7 @@ void hfi1_free_devdata(struct hfi1_devdata *dd)
free_percpu(dd->rcv_limit);
hfi1_dev_affinity_free(dd);
free_percpu(dd->send_schedule);
ib_dealloc_device(&dd->verbs_dev.rdi.ibdev);
rvt_dealloc_device(&dd->verbs_dev.rdi);
}
/*
@ -1110,7 +1110,7 @@ struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, size_t extra)
bail:
if (!list_empty(&dd->list))
list_del_init(&dd->list);
ib_dealloc_device(&dd->verbs_dev.rdi.ibdev);
rvt_dealloc_device(&dd->verbs_dev.rdi);
return ERR_PTR(ret);
}

1
include/rdma/rdma_vt.h
View File

@ -467,6 +467,7 @@ static inline struct rvt_qp *rvt_lookup_qpn(struct rvt_dev_info *rdi,
}
struct rvt_dev_info *rvt_alloc_device(size_t size, int nports);
void rvt_dealloc_device(struct rvt_dev_info *rdi);
int rvt_register_device(struct rvt_dev_info *rvd);
void rvt_unregister_device(struct rvt_dev_info *rvd);
int rvt_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);