xen/9pfs: use g_new(T, n) instead of g_malloc(sizeof(T) * n)

Because it is a recommended coding practice (see HACKING).

Signed-off-by: Greg Kurz <groug@kaod.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>

hw/9pfs/xen-9p-backend.c

@@ -178,7 +178,7 @@ static void xen_9pfs_init_out_iov_from_pdu(V9fsPDU *pdu,
 
     g_free(ring->sg);
 
-    ring->sg = g_malloc0(sizeof(*ring->sg) * 2);
+    ring->sg = g_new0(struct iovec, 2);
     xen_9pfs_out_sg(ring, ring->sg, &num, pdu->idx);
     *piov = ring->sg;
     *pniov = num;
@@ -196,7 +196,7 @@ static void xen_9pfs_init_in_iov_from_pdu(V9fsPDU *pdu,
 
     g_free(ring->sg);
 
-    ring->sg = g_malloc0(sizeof(*ring->sg) * 2);
+    ring->sg = g_new0(struct iovec, 2);
     xen_9pfs_in_sg(ring, ring->sg, &num, pdu->idx, size);
 
     buf_size = iov_size(ring->sg, num);
@@ -368,7 +368,7 @@ static int xen_9pfs_connect(struct XenDevice *xendev)
         return -1;
     }
 
-    xen_9pdev->rings = g_malloc0(xen_9pdev->num_rings * sizeof(Xen9pfsRing));
+    xen_9pdev->rings = g_new0(Xen9pfsRing, xen_9pdev->num_rings);
     for (i = 0; i < xen_9pdev->num_rings; i++) {
         char *str;
         int ring_order;