RDMA: Clear PD objects during their allocation

As part of an audit process to update drivers to use rdma_restrack_add()
ensure that PD 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_pd.c

@@ -66,7 +66,7 @@ struct ib_pd *hns_roce_alloc_pd(struct ib_device *ib_dev,
 	struct hns_roce_pd *pd;
 	int ret;
 
-	pd = kmalloc(sizeof(*pd), GFP_KERNEL);
+	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/mlx5/main.c

@@ -2263,7 +2263,7 @@ static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev,
 	u32 in[MLX5_ST_SZ_DW(alloc_pd_in)]   = {};
 	u16 uid = 0;
 
-	pd = kmalloc(sizeof(*pd), GFP_KERNEL);
+	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/mthca/mthca_provider.c

@@ -381,7 +381,7 @@ static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev,
 	struct mthca_pd *pd;
 	int err;
 
-	pd = kmalloc(sizeof *pd, GFP_KERNEL);
+	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd)
 		return ERR_PTR(-ENOMEM);
 

drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c

@@ -457,7 +457,7 @@ struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
 	if (!atomic_add_unless(&dev->num_pds, 1, dev->dsr->caps.max_pd))
 		return ERR_PTR(-ENOMEM);
 
-	pd = kmalloc(sizeof(*pd), GFP_KERNEL);
+	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd) {
 		ptr = ERR_PTR(-ENOMEM);
 		goto err;

drivers/infiniband/sw/rdmavt/pd.c

@@ -66,7 +66,7 @@ struct ib_pd *rvt_alloc_pd(struct ib_device *ibdev,
 	struct rvt_pd *pd;
 	struct ib_pd *ret;
 
-	pd = kmalloc(sizeof(*pd), GFP_KERNEL);
+	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd) {
 		ret = ERR_PTR(-ENOMEM);
 		goto bail;