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Commit 31a67370 authored by Mustafa Ismail's avatar Mustafa Ismail Committed by Greg Kroah-Hartman
Browse files

i40iw: Fix memory leak in error path of create QP 



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: d3749841 ("i40iw: add files for iwarp interface")
Signed-off-by: default avatarMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
Signed-off-by: default avatarSudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9d9cd2bc

drivers/infiniband/hw/i40iw/i40iw_verbs.c

+1 −1
Original line number Diff line number Diff line
@@ -631,6 +631,7 @@ 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;
@@ -659,7 +660,6 @@ 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;