Replace assignment of 0 to pointer with NULL assignment.
Link: https://lore.kernel.org/r/20191025135010.GA6191@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
                } else {
                        pm8001_ha->io_mem[logicalBar].membase   = 0;
                        pm8001_ha->io_mem[logicalBar].memsize   = 0;
-                       pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
+                       pm8001_ha->io_mem[logicalBar].memvirtaddr = NULL;
                }
                logicalBar++;
        }