vhost: use kzalloc() instead of kmalloc() followed by memset()

Use kzalloc() to allocate new zeroed out msg node instead of
memsetting a node allocated with kmalloc().

Signed-off-by: Prathu Baronia <prathubaronia2011@gmail.com>
Message-Id: <20230522085019.42914-1-prathubaronia2011@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 0742730..ecb3b39 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -2563,12 +2563,11 @@ EXPORT_SYMBOL_GPL(vhost_disable_notify);
 /* Create a new message. */
 struct vhost_msg_node *vhost_new_msg(struct vhost_virtqueue *vq, int type)
 {
-       struct vhost_msg_node *node = kmalloc(sizeof *node, GFP_KERNEL);
+       /* Make sure all padding within the structure is initialized. */
+       struct vhost_msg_node *node = kzalloc(sizeof(*node), GFP_KERNEL);
        if (!node)
                return NULL;
 
-       /* Make sure all padding within the structure is initialized. */
-       memset(&node->msg, 0, sizeof node->msg);
        node->vq = vq;
        node->msg.type = type;
        return node;