diff --git a/drivers/input/keyboard/rk29_keys.c b/drivers/input/keyboard/rk29_keys.c
index 1eca1d6a8135..60066f207816 100755
--- a/drivers/input/keyboard/rk29_keys.c
+++ b/drivers/input/keyboard/rk29_keys.c
@@ -99,6 +99,11 @@ static ssize_t rk29key_set(struct device *dev,
 	{
 		
 		p = strstr(buf,Arrary[i].keyArrary);
+		if(p==0)
+              {
+                   printk(" rk29key_set p == 0 error ...............\n");
+                   return 0;
+              }
 		
 		start = strcspn(p,":");