RDMA: Clear CTX objects during their allocation

As part of an audit process to update drivers to use rdma_restrack_add()
ensure that CTX objects is cleared before access.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/hns/hns_roce_main.c

@@ -343,7 +343,7 @@ static struct ib_ucontext *hns_roce_alloc_ucontext(struct ib_device *ib_dev,
 
 	resp.qp_tab_size = hr_dev->caps.num_qps;
 
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/mthca/mthca_provider.c

@@ -318,7 +318,7 @@ static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev,
 	else
 		uresp.uarc_size = 0;
 
-	context = kmalloc(sizeof *context, GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/usnic/usnic_ib_verbs.c

@@ -683,7 +683,7 @@ struct ib_ucontext *usnic_ib_alloc_ucontext(struct ib_device *ibdev,
 	struct usnic_ib_dev *us_ibdev = to_usdev(ibdev);
 	usnic_dbg("\n");
 
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c

@@ -327,7 +327,7 @@ struct ib_ucontext *pvrdma_alloc_ucontext(struct ib_device *ibdev,
 	if (!vdev->ib_active)
 		return ERR_PTR(-EAGAIN);
 
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/sw/rdmavt/vt.c

@@ -304,7 +304,7 @@ static struct ib_ucontext *rvt_alloc_ucontext(struct ib_device *ibdev,
 {
 	struct rvt_ucontext *context;
 
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return ERR_PTR(-ENOMEM);
 	return &context->ibucontext;