diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 021b863dda95..5532a28e6030 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -1000,7 +1000,7 @@ static void sm750fb_setup(struct lynx_share * share,char * src)
             goto NO_PARAM;
         }
 
-        while((opt = strsep(&src,":")) != NULL && *opt != NULL){
+        while((opt = strsep(&src,":")) != NULL && *opt != 0){
 			pr_err("opt=%s\n",opt);
 			pr_err("src=%s\n",src);