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Message-ID: <34a4575b-d8fd-755a-9eaa-5ba7bcec994f@users.sourceforge.net>
Date: Mon, 6 Mar 2017 18:42:44 +0100
From: SF Markus Elfring <elfring@...rs.sourceforge.net>
To: linux-rdma@...r.kernel.org, Doug Ledford <dledford@...hat.com>,
Faisal Latif <faisal.latif@...el.com>,
Hal Rosenstock <hal.rosenstock@...il.com>,
Sean Hefty <sean.hefty@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
kernel-janitors@...r.kernel.org
Subject: [PATCH 3/5] IB/nes: Adjust 16 checks for null pointers
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 6 Mar 2017 16:54:03 +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@...rs.sourceforge.net>
---
drivers/infiniband/hw/nes/nes_verbs.c | 35 +++++++++++++++++------------------
1 file changed, 17 insertions(+), 18 deletions(-)
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index a28dfeaa1f45..f79ea50e3ab5 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -106,7 +106,7 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd, enum ib_mw_type type,
/* Register the region with the adapter */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
kfree(nesmr);
nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
return ERR_PTR(-ENOMEM);
@@ -171,7 +171,7 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
/* Deallocate the window with the adapter */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -224,7 +224,7 @@ static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -627,7 +627,7 @@ static int nes_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
return -EFAULT;
}
nesqp = nes_ucontext->mmap_nesqp[index];
- if (nesqp == NULL) {
+ if (!nesqp) {
nes_debug(NES_DBG_MMAP, "wq %lu has a NULL QP base.\n", index);
return -EFAULT;
}
@@ -1228,7 +1228,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
/* Create the QP */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_QP, "Failed to get a cqp_request\n");
nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
nes_free_qp_mem(nesdev, nesqp,virt_wqs);
@@ -1539,7 +1539,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev,
/* send CreateCQ request to CQP */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n");
if (!context)
pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
@@ -1697,7 +1697,7 @@ static int nes_destroy_cq(struct ib_cq *ib_cq)
u32 opcode = 0;
int ret;
- if (ib_cq == NULL)
+ if (!ib_cq)
return 0;
nescq = to_nescq(ib_cq);
@@ -1709,7 +1709,7 @@ static int nes_destroy_cq(struct ib_cq *ib_cq)
/* Send DestroyCQ request to CQP */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -1788,8 +1788,7 @@ static u32 root_256(struct nes_device *nesdev,
if (pbl_count_4k == 1) {
new_root->pbl_vbase = pci_alloc_consistent(nesdev->pcidev,
512, &new_root->pbl_pbase);
-
- if (new_root->pbl_vbase == NULL)
+ if (!new_root->pbl_vbase)
return 0;
leaf_pbl = (u64)root_vpbl->pbl_pbase;
@@ -1847,7 +1846,7 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
/* Register the region with the adapter */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -2509,7 +2508,7 @@ static int nes_dereg_mr(struct ib_mr *ib_mr)
/* Deallocate the region with the adapter */
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -2673,7 +2672,7 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp,
nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount));
cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
+ if (!cqp_request) {
nes_debug(NES_DBG_MOD_QP, "Failed to get a cqp_request.\n");
return -ENOMEM;
}
@@ -2793,7 +2792,7 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
spin_unlock_irqrestore(&nesqp->lock, qplockflags);
return -EINVAL;
}
- if (nesqp->cm_id == NULL) {
+ if (!nesqp->cm_id) {
nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n",
nesqp->hwqp.qp_id );
spin_unlock_irqrestore(&nesqp->lock, qplockflags);
@@ -3696,9 +3695,9 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
struct nes_device *nesdev = nesvnic->nesdev;
nesibdev = (struct nes_ib_device *)ib_alloc_device(sizeof(struct nes_ib_device));
- if (nesibdev == NULL) {
+ if (!nesibdev)
return NULL;
- }
+
strlcpy(nesibdev->ibdev.name, "nes%d", IB_DEVICE_NAME_MAX);
nesibdev->ibdev.owner = THIS_MODULE;
@@ -3772,7 +3771,7 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
nesibdev->ibdev.drain_rq = nes_drain_rq;
nesibdev->ibdev.iwcm = kzalloc(sizeof(*nesibdev->ibdev.iwcm), GFP_KERNEL);
- if (nesibdev->ibdev.iwcm == NULL) {
+ if (!nesibdev->ibdev.iwcm) {
ib_dealloc_device(&nesibdev->ibdev);
return NULL;
}
@@ -3844,7 +3843,7 @@ void nes_port_ibevent(struct nes_vnic *nesvnic)
*/
void nes_destroy_ofa_device(struct nes_ib_device *nesibdev)
{
- if (nesibdev == NULL)
+ if (!nesibdev)
return;
nes_unregister_ofa_device(nesibdev);
--
2.12.0
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