Update comments, mostly spelling errors.

arch/arm/src/stm32/stm32_bkp.h

@@ -43,7 +43,7 @@
 #include <nuttx/config.h>
 
 /* Only the STM32 F1 family has a dedicated address region for BKP memory.  For F2,
- * F3, and F3 parts, the bKP registers lie in the same address region as the RTCC
+ * F3, and F4 parts, the bKP registers lie in the same address region as the RTCC
  * and the definitions in chip/stm32_rtcc.h should be used to access backup
  * registers.  NOTE:  These definitions are not interchangeable!
  */

configs/flipnclick-sam3x/README.txt

@@ -397,7 +397,7 @@ Loading Code
      3  GND            GND
      4  JTAG_TCK       SWDCLK/TCK        SAM3X pin 28, Pulled up on board
      5  GND            GND
-     6  JTAG_TDO       SWO/EXta/TRACECTL SAM3X pin 30, ulled up on board
+     6  JTAG_TDO       SWO/EXta/TRACECTL SAM3X pin 30, Pulled up on board
      7  N/C            Key
      8  JTAG_TDI       NC/EXTb/TDI       SAM3X pin 29, Pulled up on board
      9  GND            GNDDetect

configs/flipnclick-sam3x/src/flipnclick-sam3x.h

@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __CONFIGS_FLIPNCLICK_SAM3X_SRC_ARDUNO_DUE_H
-#define __CONFIGS_FLIPNCLICK_SAM3X_SRC_ARDUNO_DUE_H
+#ifndef __CONFIGS_FLIPNCLICK_SAM3X_SRC_FLIPNCLICK_SAM3X_H
+#define __CONFIGS_FLIPNCLICK_SAM3X_SRC_FLIPNCLICK_SAM3X_H
 
 /************************************************************************************
  * Included Files
@@ -159,5 +159,5 @@
 int sam_bringup(void);
 
 #endif /* __ASSEMBLY__ */
-#endif /* __CONFIGS_FLIPNCLICK_SAM3X_SRC_ARDUNO_DUE_H */
+#endif /* __CONFIGS_FLIPNCLICK_SAM3X_SRC_FLIPNCLICK_SAM3X_H */
 

sched/irq/irq_csection.c

@@ -99,7 +99,7 @@ volatile uint8_t g_cpu_nestcount[CONFIG_SMP_NCPUS];
  *     spinlock.
  *   - Another task on CPUm attempts to enter the critical section but has
  *     to wait, spinning to get g_cpu_irqlock with interrupts disabled.
- *   - The task on CPUn causes a new task to become ready-torun and the
+ *   - The task on CPUn causes a new task to become ready-to-run and the
  *     scheduler selects CPUm.  CPUm is requested to pause via a pause
  *     interrupt.
  *   - But the task on CPUm is also attempting to enter the critical
@@ -641,7 +641,7 @@ bool irq_cpu_locked(int cpu)
     {
       /* In this case g_cpu_irqlock should be unlocked.  However, if
        * the lock was established in the interrupt handler AND there are
-       * no bits set in g_cpu_irqset, that probabaly means only that
+       * no bits set in g_cpu_irqset, that probably means only that
        * critical section was established from an interrupt handler.
        * Return false in either case.
        */

sched/module/mod_procfs.c

@@ -286,7 +286,7 @@ static int modprocfs_dup(FAR const struct file *oldp, FAR struct file *newp)
       return -ENOMEM;
     }
 
-  /* The copy the file attribtes from the old attributes to the new */
+  /* The copy the file attributes from the old attributes to the new */
 
   memcpy(newpriv, oldpriv, sizeof(struct modprocfs_file_s));
 

sched/sched/sched_addreadytorun.c

@@ -405,7 +405,7 @@ bool sched_addreadytorun(FAR struct tcb_s *btcb)
           /* No context switch.  Assign the CPU and set the assigned state.
            *
            * REVISIT: I have seen this assertion fire.  Apparently another
-           * CPU may add another, higher prioirity task to the same
+           * CPU may add another, higher priority task to the same
            * g_assignedtasks[] list sometime after sched_cpu_select() was
            * called above, leaving this TCB in the wrong task list if task_state
            * is TSTATE_TASK_ASSIGNED).

sched/task/task_posixspawn.c

@@ -351,7 +351,8 @@ int posix_spawn(FAR pid_t *pid, FAR const char *path,
         pid, path, file_actions, attr, argv);
 
   /* If there are no file actions to be performed and there is no change to
-   * the signal mask, then start the new child task directly from the parent task.
+   * the signal mask, then start the new child task directly from the parent
+   * task.
    */
 
 #ifndef CONFIG_DISABLE_SIGNALS

sched/task/task_setup.c

@@ -57,6 +57,7 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+
 /* This is an artificial limit to detect error conditions where an argv[]
  * list is not properly terminated.
  */
@@ -702,12 +703,11 @@ int pthread_schedsetup(FAR struct pthread_tcb_s *tcb, int priority,
  * Input Parameters:
  *   tcb  - Address of the new task's TCB
  *   name - Name of the new task (not used)
- *   argv       - A pointer to an array of input parameters.
- *                Up to CONFIG_MAX_TASK_ARG parameters may be
- *                provided. If fewer than CONFIG_MAX_TASK_ARG
- *                parameters are passed, the list should be
- *                terminated with a NULL argv[] value.
- *                If no parameters are required, argv may be NULL.
+ *   argv - A pointer to an array of input parameters.  Up to
+ *          CONFIG_MAX_TASK_ARG parameters may be provided. If fewer than
+ *          CONFIG_MAX_TASK_ARG parameters are passed, the list should be
+ *          terminated with a NULL argv[] value.  If no parameters are
+ *          required, argv may be NULL.
  *
  * Return Value:
  *  OK

sched/task/task_vfork.c

@@ -57,6 +57,7 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+
 /* vfork() requires architecture-specific support as well as waipid(). */
 
 #if defined(CONFIG_ARCH_HAVE_VFORK) && defined(CONFIG_SCHED_WAITPID)