diff --git a/drivers/note/Kconfig b/drivers/note/Kconfig
index 0644402f08..646f9195d0 100644
--- a/drivers/note/Kconfig
+++ b/drivers/note/Kconfig
@@ -34,10 +34,10 @@ config DRIVER_NOTERAM
 		buffer.
 
 		NOTE: This option is not available if critical sections are being
-		monitor (nor if spinlocks are being monitored in SMP configuration)
+		monitored (nor if spinlocks are being monitored in SMP configuration)
 		because there would be a logical error in the design in those cases.
 		That error is that these interfaces call enter_ and leave_critical_section
-		(and which us spinlocks in SMP mode).  That means that each call to
+		(which use spinlocks in SMP mode).  That means that each call to
 		sched_note_get() causes several additional entries to be added from
 		the note buffer in order to remove one entry.
 
diff --git a/drivers/note/notectl_driver.c b/drivers/note/notectl_driver.c
index 05ed3babf6..35157c32d0 100644
--- a/drivers/note/notectl_driver.c
+++ b/drivers/note/notectl_driver.c
@@ -231,7 +231,7 @@ static int notectl_ioctl(struct file *filep, int cmd, unsigned long arg)
  *   None.
  *
  * Returned Value:
- *   Zero on succress. A negated errno value is returned on a failure.
+ *   Zero on success. A negated errno value is returned on a failure.
  *
  ****************************************************************************/
 
diff --git a/sched/Kconfig b/sched/Kconfig
index 6209e8c178..e01fa4c950 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -949,7 +949,7 @@ config SCHED_INSTRUMENTATION
 			void sched_note_cpu_resume(FAR struct tcb_s *tcb, int cpu);
 			void sched_note_cpu_resumed(FAR struct tcb_s *tcb);
 
-		NOTE: These are internal OS interfaces and are called at at very
+		NOTE: These are internal OS interfaces and are called at very
 		critical locations in the OS. There is very little that can be
 		done in these interfaces.  For example, normal devices may not be
 		used; syslog output cannot be performed.
@@ -965,7 +965,7 @@ config SCHED_INSTRUMENTATION_EXTERNAL
 		SCHED_INSTRUMENTATION_SPINLOCKS, SCHED_INSTRUMENTATION_SYSCALL and
 		SCHED_INSTRUMENTATION_IRQHANDLER. Otherwise the common code will implement
 		these callbacks and packet the arguments into note_ struct. Then the board
-		-specific logic just need to implement one callback:
+		-specific logic just needs to implement one callback:
 
 		  void sched_note_add(FAR const void *note, size_t notelen);