diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c
index c9b1eb38444e8cc199aeffa2c96244b141663b7d..724e9aac0f11abf7496153b2ffbb54c620228f93 100644
--- a/drivers/media/dvb-frontends/lgdt3306a.c
+++ b/drivers/media/dvb-frontends/lgdt3306a.c
@@ -19,6 +19,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <asm/div64.h>
+#include <linux/kernel.h>
 #include <linux/dvb/frontend.h>
 #include "dvb_math.h"
 #include "lgdt3306a.h"
@@ -2072,7 +2073,7 @@ static const short regtab[] = {
 	0x30aa, /* MPEGLOCK */
 };
 
-#define numDumpRegs (sizeof(regtab)/sizeof(regtab[0]))
+#define numDumpRegs (ARRAY_SIZE(regtab))
 static u8 regval1[numDumpRegs] = {0, };
 static u8 regval2[numDumpRegs] = {0, };