diff --git a/drivers/adc/core.c b/drivers/adc/core.c
index eb7ddef884ac..e4bfb238af70 100755
--- a/drivers/adc/core.c
+++ b/drivers/adc/core.c
@@ -11,6 +11,7 @@
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/adc.h>
+#include <linux/slab.h>
 
 
 static struct adc_host *g_adc = NULL;
diff --git a/drivers/adc/plat/rk29_adc.c b/drivers/adc/plat/rk29_adc.c
index 2471abafff0b..1b52850715be 100755
--- a/drivers/adc/plat/rk29_adc.c
+++ b/drivers/adc/plat/rk29_adc.c
@@ -15,6 +15,7 @@
 #include <linux/io.h>
 #include <linux/adc.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 
 #include "rk29_adc.h"