[PATCH 12/26] IB/ocrdma: Adjust ten checks for null pointers

SF Markus Elfring
2017-03-08T13:15:47Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 7 Mar 2017 21:32:22 +0100
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The script “checkpatch.pl“ pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

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

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index d5b988b011d1..8c7f0b108a7f 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -665,7 +665,7 @@ static void ocrdma_process_qpcat_error(struct ocrdma_dev *dev,
enum ib_qp_state new_ib_qps = IB_QPS_ERR;
enum ib_qp_state old_ib_qps;

- if (qp == NULL)
+ if (!qp)
BUG();
ocrdma_qp_state_change(qp, new_ib_qps, &old_ib_qps);
}
@@ -693,7 +693,7 @@ static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev,
if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID) {
if (qpid < dev->attr.max_qp)
qp = dev->qp_tbl[qpid];
- if (qp == NULL) {
+ if (!qp) {
pr_err("ocrdma%d:Async event - qpid %u is not valid\n",
dev->id, qpid);
return;
@@ -703,7 +703,7 @@ static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev,
if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID) {
if (cqid < dev->attr.max_cq)
cq = dev->cq_tbl[cqid];
- if (cq == NULL) {
+ if (!cq) {
pr_err("ocrdma%d:Async event - cqid %u is not valid\n",
dev->id, cqid);
return;
@@ -882,7 +882,7 @@ static int ocrdma_mq_cq_handler(struct ocrdma_dev *dev, u16 cq_id)

while (1) {
cqe = ocrdma_get_mcqe(dev);
- if (cqe == NULL)
+ if (!cqe)
break;
ocrdma_le32_to_cpu(cqe, sizeof(*cqe));
cqe_popped += 1;
@@ -948,7 +948,7 @@ static void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev,
* false - Check for RQ CQ
*/
bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, true);
- if (bcq == NULL)
+ if (!bcq)
bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, false);
spin_unlock_irqrestore(&dev->flush_q_lock, flags);

@@ -969,7 +969,7 @@ static void ocrdma_qp_cq_handler(struct ocrdma_dev *dev, u16 cq_idx)
BUG();

cq = dev->cq_tbl[cq_idx];
- if (cq == NULL)
+ if (!cq)
return;

if (cq->ibcq.comp_handler) {
@@ -1289,7 +1289,7 @@ int ocrdma_mbx_rdma_stats(struct ocrdma_dev *dev, bool reset)
int status;

old_stats = kmalloc(sizeof(*old_stats), GFP_KERNEL);
- if (old_stats == NULL)
+ if (!old_stats)
return -ENOMEM;

memset(mqe, 0, sizeof(*mqe));
@@ -1676,12 +1676,12 @@ static int ocrdma_mbx_create_ah_tbl(struct ocrdma_dev *dev)
dev->av_tbl.pbl.va = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
&dev->av_tbl.pbl.pa,
GFP_KERNEL);
- if (dev->av_tbl.pbl.va == NULL)
+ if (!dev->av_tbl.pbl.va)
goto mem_err;

dev->av_tbl.va = dma_alloc_coherent(&pdev->dev, dev->av_tbl.size,
&pa, GFP_KERNEL);
- if (dev->av_tbl.va == NULL)
+ if (!dev->av_tbl.va)
goto mem_err_ah;
dev->av_tbl.pa = pa;
dev->av_tbl.num_ah = max_ah;
@@ -1722,7 +1722,7 @@ static void ocrdma_mbx_delete_ah_tbl(struct ocrdma_dev *dev)
struct ocrdma_delete_ah_tbl *cmd;
struct pci_dev *pdev = dev->nic_info.pdev;

- if (dev->av_tbl.va == NULL)
+ if (!dev->av_tbl.va)
return;

cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_AH_TBL, sizeof(*cmd));
--
2.12.0