Use ARRAY_SIZE macroto get maximum ports in ColdFire serial driver.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
 static struct mcf_uart mcf_ports[3];
 
-#define        MCF_MAXPORTS    (sizeof(mcf_ports) / sizeof(struct mcf_uart))
+#define        MCF_MAXPORTS    ARRAY_SIZE(mcf_ports)
 
 /****************************************************************************/
 #if defined(CONFIG_SERIAL_MCF_CONSOLE)