[PATCH 26/26] IB/ocrdma: Adjust further ten checks for null pointers

SF Markus Elfring
2017-03-08T15:09:51Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 8 Mar 2017 12:50:14 +0100
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The script “checkpatch.pl“ pointed information out like the following.

Comparison to NULL could be written !…

Thus fix affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index bfd86fd08847..bd719e7f134e 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -267,7 +267,7 @@ static int ocrdma_add_mmap(struct ocrdma_ucontext *uctx, u64 phy_addr,
struct ocrdma_mm *mm;

mm = kzalloc(sizeof(*mm), GFP_KERNEL);
- if (mm == NULL)
+ if (!mm)
return -ENOMEM;
mm->key.phy_addr = phy_addr;
mm->key.len = len;
@@ -1187,7 +1187,7 @@ static int ocrdma_add_qpn_map(struct ocrdma_dev *dev, struct ocrdma_qp *qp)
{
int status = -EINVAL;

- if (qp->id < OCRDMA_MAX_QP && dev->qp_tbl[qp->id] == NULL) {
+ if (qp->id < OCRDMA_MAX_QP && !dev->qp_tbl[qp->id]) {
dev->qp_tbl[qp->id] = qp;
status = 0;
}
@@ -1355,11 +1355,11 @@ static int ocrdma_alloc_wr_id_tbl(struct ocrdma_qp *qp)
{
qp->wqe_wr_id_tbl = kcalloc(qp->sq.max_cnt, sizeof(*qp->wqe_wr_id_tbl),
GFP_KERNEL);
- if (qp->wqe_wr_id_tbl == NULL)
+ if (!qp->wqe_wr_id_tbl)
return -ENOMEM;
qp->rqe_wr_id_tbl = kcalloc(qp->rq.max_cnt, sizeof(*qp->rqe_wr_id_tbl),
GFP_KERNEL);
- if (qp->rqe_wr_id_tbl == NULL)
+ if (!qp->rqe_wr_id_tbl)
return -ENOMEM;

return 0;
@@ -1419,7 +1419,7 @@ struct ib_qp *ocrdma_create_qp(struct ib_pd *ibpd,
goto gen_err;
}
ocrdma_set_qp_init_params(qp, pd, attrs);
- if (udata == NULL)
+ if (!udata)
qp->cap_flags |= (OCRDMA_QP_MW_BIND | OCRDMA_QP_LKEY0 |
OCRDMA_QP_FAST_REG);

@@ -1431,7 +1431,7 @@ struct ib_qp *ocrdma_create_qp(struct ib_pd *ibpd,
goto mbx_err;

/* user space QP's wr_id table are managed in library */
- if (udata == NULL) {
+ if (!udata) {
status = ocrdma_alloc_wr_id_tbl(qp);
if (status)
goto map_err;
@@ -1892,11 +1892,11 @@ struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
if (status)
goto err;

- if (udata == NULL) {
+ if (!udata) {
srq->rqe_wr_id_tbl = kcalloc(srq->rq.max_cnt,
sizeof(*srq->rqe_wr_id_tbl),
GFP_KERNEL);
- if (srq->rqe_wr_id_tbl == NULL)
+ if (!srq->rqe_wr_id_tbl)
goto arm_err;

srq->bit_fields_len = (srq->rq.max_cnt / 32) +
@@ -1904,7 +1904,7 @@ struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
srq->idx_bit_fields = kmalloc_array(srq->bit_fields_len,
sizeof(*srq->idx_bit_fields),
GFP_KERNEL);
- if (srq->idx_bit_fields == NULL)
+ if (!srq->idx_bit_fields)
goto arm_err;
memset(srq->idx_bit_fields, 0xff,
srq->bit_fields_len * sizeof(*srq->idx_bit_fields));
@@ -2878,7 +2878,7 @@ static int ocrdma_poll_hwcq(struct ocrdma_cq *cq, int num_entries,
if (qpn == 0)
goto skip_cqe;
qp = dev->qp_tbl[qpn];
- BUG_ON(qp == NULL);
+ BUG_ON(!qp);

expand = is_cqe_for_sq(cqe)
? ocrdma_poll_scqe(qp, cqe, ibwc, &polled, &stop)
--
2.12.0