diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index 105c3b8f4024..ed356f1bdece 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -7028,7 +7028,7 @@ static char *dgap_sindex(char *string, char *group)
 	char *ptr;
 
 	if (!string || !group)
-		return (char *) NULL;
+		return NULL;
 
 	if (*group == '^') {
 		group++;
@@ -7049,7 +7049,7 @@ static char *dgap_sindex(char *string, char *group)
 		}
 	}
 
-	return (char *) NULL;
+	return NULL;
 }
 
 /*