diff mbox

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

Message ID 8795100d-0577-bdcf-f4f2-04d04154bf71@users.sourceforge.net (mailing list archive)
State Changes Requested
Headers show

Commit Message

SF Markus Elfring March 8, 2017, 1:07 p.m. UTC 
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 7 Mar 2017 21:32:22 +0100
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

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(-)

Comments

Yuval Shaia March 8, 2017, 2:27 p.m. UTC | #1 
On Wed, Mar 08, 2017 at 02:07:01PM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 7 Mar 2017 21:32:22 +0100
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> The script “checkpatch.pl“ pointed information out like the following.
> 
> Comparison to NULL could be written !…

Good to know.

Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>


> 
> Thus fix the affected source code places.

Above line can be removed.

> 
> 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
> 
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diff mbox

Patch

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));