diff --git a/hello1.c b/hello1.c
index d72a526..8d2487f 100644
--- a/hello1.c
+++ b/hello1.c
@@ -46,7 +46,7 @@ struct TimingList {
 
 static struct TimingList *tl_head;
 
-static struct TimingList* write_first_node(void)
+static struct TimingList *write_first_node(void)
 {
 	tl_head = kmalloc(sizeof(struct TimingList), GFP_KERNEL);
 	tl_head->next = NULL;
@@ -54,7 +54,7 @@ static struct TimingList* write_first_node(void)
 	return tl_head;
 }
 
-static struct TimingList* insert_next_node(struct TimingList *tail)
+static struct TimingList *insert_next_node(struct TimingList *tail)
 {
 	struct TimingList *new_tl_node = kmalloc(sizeof(struct TimingList),
 						GFP_KERNEL);
@@ -65,7 +65,7 @@ static struct TimingList* insert_next_node(struct TimingList *tail)
 	return new_tl_node;
 }
 
-static struct TimingList* add_new_node(struct TimingList *tail)
+static struct TimingList *add_new_node(struct TimingList *tail)
 {
 	if (tail == NULL)
 		return write_first_node();
@@ -93,6 +93,7 @@ void destroy_list(void)
 		curr_tl = next_tl;
 	}
 }
+EXPORT_SYMBOL(destroy_list);
 
 static int __init hello_init(void)
 {
@@ -112,14 +113,13 @@ void print_hello(int msg_count)
 		current_tail->t_after = ktime_get();
 	}
 }
+EXPORT_SYMBOL(print_hello);
 
 static void __exit hello_exit(void)
 {
 	destroy_list();
 }
 
-EXPORT_SYMBOL(print_hello);
-EXPORT_SYMBOL(destroy_list);
 
 module_init(hello_init);
 module_exit(hello_exit);
diff --git a/hello2.c b/hello2.c
index 834606f..5315fc0 100644
--- a/hello2.c
+++ b/hello2.c
@@ -49,9 +49,8 @@ static int __init hello_init(void)
 		return -EINVAL;
 	}
 
-	if (msg_count == 0 || msg_count >= 5) {
+	if (msg_count == 0 || msg_count >= 5)
 		pr_warn("Warning: msg_count = %d (msg_count == 0 or 5 <= msg_count <= 10)\n", msg_count);
-	}
 
 	print_hello(msg_count);
 	return 0;
diff --git a/inc/hello1.h b/inc/hello1.h
index aed9048..678cfb8 100644
--- a/inc/hello1.h
+++ b/inc/hello1.h
@@ -1,2 +1,2 @@
-void print_hello(int);
+void print_hello(int msg_count);
 void destroy_list(void);