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i40iw: Fix memory leak in error path of create QP 

If i40iw_allocate_dma_mem fails when creating a QP, the
memory allocated for the QP structure using kzalloc is not
freed because iwqp->allocated_buffer is used to free the
memory and it is not setup until later. Fix this by setting
iwqp->allocated_buffer before allocating the dma memory.

Fixes: d374984179 ("i40iw: add files for iwarp interface")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mustafa Ismail 2018-05-07 12:52:17 -05:00 committed by Doug Ledford
parent 37da2a03c0
commit 5a7189d529
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/i40iw/i40iw_verbs.c
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@ -614,6 +614,7 @@ static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
return ERR_PTR(-ENOMEM);
iwqp = (struct i40iw_qp *)mem;
iwqp->allocated_buffer = mem;
qp = &iwqp->sc_qp;
qp->back_qp = (void *)iwqp;
qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
@ -642,7 +643,6 @@ static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
goto error;
}
iwqp->allocated_buffer = mem;
iwqp->iwdev = iwdev;
iwqp->iwpd = iwpd;
iwqp->ibqp.qp_num = qp_num;