Cosmetic changes

arch/arm/src/stm32/stm32_rtcc.c

@@ -484,6 +484,7 @@ static int rtc_setup(void)
 
       rtc_wprlock();
     }
+
   return ret;
 }
 
@@ -526,6 +527,7 @@ static int rtc_resume(void)
 
   putreg32((1 << 17), STM32_EXTI_PR);
 #endif
+
   return ret;
 }
 

drivers/usbhost/usbhost_enumerate.c

@@ -424,7 +424,7 @@ int usbhost_enumerate(FAR struct usbhost_driver_s *drvr, uint8_t funcaddr,
 
   /* Get class identification information from the device descriptor.  Most
    * devices set this to USB_CLASS_PER_INTERFACE (zero) and provide the
-   * identification informatino in the interface descriptor(s).  That allows
+   * identification information in the interface descriptor(s).  That allows
    * a device to support multiple, different classes.
    */
 

mm/mm_sem.c

@@ -211,7 +211,10 @@ void mm_givesemaphore(FAR struct mm_heap_s *heap)
     {
       /* Nope, this is the last reference I have */
 
+#ifdef CONFIG_DEBUG
       msemdbg("PID=%d giving\n", my_pid);
+#endif
+
       heap->mm_holder      = -1;
       heap->mm_counts_held = 0;
       ASSERT(sem_post(&heap->mm_semaphore) == 0);