diff --git a/api_examples/Makefile b/api_examples/Makefile
index 5812bcd..cb49a9e 100644
--- a/api_examples/Makefile
+++ b/api_examples/Makefile
@@ -71,7 +71,7 @@
 $(obj)%.bin:	$(obj)%
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
-$(obj)crc32.c: 
+$(obj)crc32.c:
 	@rm -f $(obj)crc32.c
 	ln -s $(src)../lib_generic/crc32.c $(obj)crc32.c
 
diff --git a/api_examples/demo.c b/api_examples/demo.c
index a4aeef1..eae9712 100644
--- a/api_examples/demo.c
+++ b/api_examples/demo.c
@@ -88,7 +88,7 @@
 	/* enumerate devices */
 	printf("\n*** Enumerate devices ***\n");
 	devs_no = ub_dev_enum();
-	
+
 	printf("Number of devices found: %d\n", devs_no);
 	if (devs_no == 0)
 		return -1;
diff --git a/api_examples/glue.c b/api_examples/glue.c
index 7598369..2bf47ae 100644
--- a/api_examples/glue.c
+++ b/api_examples/glue.c
@@ -150,7 +150,7 @@
  * timing
  *
  ****************************************/
- 
+
 void ub_udelay(unsigned long usec)
 {
 	syscall(API_UDELAY, NULL, &usec);
@@ -298,7 +298,7 @@
 	if (!syscall(API_DEV_READ, &err, di, buf, &len, &start, &act_len))
 		return -1;
 
-	if (err) 
+	if (err)
 		return err;
 
 	if (act_len != len)