Use dma_zalloc_coherent for allocating zeroed
memory and remove unnecessary memset function.

Done using Coccinelle.
Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
0-day tested with no failures.

Suggested-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: Himanshu Jha <[email protected]>
---
 drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c 
b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index 1f4e187..1f85168 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -885,8 +885,8 @@ static int pvrdma_pci_probe(struct pci_dev *pdev,
        dev_info(&pdev->dev, "device version %d, driver version %d\n",
                 dev->dsr_version, PVRDMA_VERSION);
 
-       dev->dsr = dma_alloc_coherent(&pdev->dev, sizeof(*dev->dsr),
-                                     &dev->dsrbase, GFP_KERNEL);
+       dev->dsr = dma_zalloc_coherent(&pdev->dev, sizeof(*dev->dsr),
+                                      &dev->dsrbase, GFP_KERNEL);
        if (!dev->dsr) {
                dev_err(&pdev->dev, "failed to allocate shared region\n");
                ret = -ENOMEM;
@@ -894,7 +894,6 @@ static int pvrdma_pci_probe(struct pci_dev *pdev,
        }
 
        /* Setup the shared region */
-       memset(dev->dsr, 0, sizeof(*dev->dsr));
        dev->dsr->driver_version = PVRDMA_VERSION;
        dev->dsr->gos_info.gos_bits = sizeof(void *) == 4 ?
                PVRDMA_GOS_BITS_32 :
-- 
2.7.4

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