VMCI: No need to clear memory after a dma_alloc_coherent() call

dma_alloc_coherent() already clear the allocated memory, there is no need
to explicitly call memset().
This saves a few cycles and a few lines of code.

Acked-by: Vishnu Dasa <vdasa@vmware.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/3e8c0bfaa77500e22d6c90f249da1c53dbae716e.1645734041.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
index 1a18587..02d4722 100644 (file)
--- a/drivers/misc/vmw_vmci/vmci_guest.c
+++ b/drivers/misc/vmw_vmci/vmci_guest.c
@@ -706,13 +706,11 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
                vmci_dev->notification_bitmap = dma_alloc_coherent(
                        &pdev->dev, PAGE_SIZE, &vmci_dev->notification_base,
                        GFP_KERNEL);
-               if (!vmci_dev->notification_bitmap) {
+               if (!vmci_dev->notification_bitmap)
                        dev_warn(&pdev->dev,
                                 "Unable to allocate notification bitmap\n");
-               } else {
-                       memset(vmci_dev->notification_bitmap, 0, PAGE_SIZE);
+               else
                        caps_in_use |= VMCI_CAPS_NOTIFICATIONS;
-               }
        }
 
        if (mmio_base != NULL) {