4.14-stable review patch. If anyone has any objections, please let me know.
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From: Mustafa Ismail mustafa.ismail@intel.com
commit 5a7189d529cd146cd5838af97b32fcac4122b471 upstream.
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: d37498417947 ("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 Signed-off-by: Sudip Mukherjee sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/infiniband/hw/i40iw/i40iw_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c +++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c @@ -631,6 +631,7 @@ static struct ib_qp *i40iw_create_qp(str 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; @@ -659,7 +660,6 @@ static struct ib_qp *i40iw_create_qp(str goto error; }
- iwqp->allocated_buffer = mem; iwqp->iwdev = iwdev; iwqp->iwpd = iwpd; iwqp->ibqp.qp_num = qp_num;