s2io bogus memset

memset() after kmalloc() on size * 8 would better be on size * 8, not
just size; fixed by switching to kcalloc() - it's more idiomatic anyway.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/s2io.c

@@ -556,10 +556,9 @@ static int init_shared_mem(struct s2io_nic *nic)
 		}
 	}
 
-	nic->ufo_in_band_v = kmalloc((sizeof(u64) * size), GFP_KERNEL);
+	nic->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL);
 	if (!nic->ufo_in_band_v)
 		return -ENOMEM;
-	memset(nic->ufo_in_band_v, 0, size);
 
 	/* Allocation and initialization of RXDs in Rings */
 	size = 0;