diff --git a/arch/sim/src/up_blocktask.c b/arch/sim/src/up_blocktask.c
index 63749556c3..27223b19c3 100644
--- a/arch/sim/src/up_blocktask.c
+++ b/arch/sim/src/up_blocktask.c
@@ -83,7 +83,7 @@ void up_block_task(struct tcb_s *tcb, tstate_t task_state)
   ASSERT((tcb->task_state >= FIRST_READY_TO_RUN_STATE) &&
          (tcb->task_state <= LAST_READY_TO_RUN_STATE));
 
-  sinfo("Blocking TCB=%p\n", tcb);
+  //sinfo("Blocking TCB=%p\n", tcb);
 
   /* Remove the tcb task from the ready-to-run list.  If we
    * are blocking the task at the head of the task list (the
diff --git a/drivers/syslog/syslog_intbuffer.c b/drivers/syslog/syslog_intbuffer.c
index d7c5674d60..28be3a74ca 100644
--- a/drivers/syslog/syslog_intbuffer.c
+++ b/drivers/syslog/syslog_intbuffer.c
@@ -322,7 +322,7 @@ int syslog_flush_intbuffer(FAR const struct syslog_channel_s *channel,
     {
       /* Transfer one character to time.  This is inefficient, but is
        * done in this way to: (1) Deal with concurrent modification of
-       * the interrutp buffer from interrupt activity, (2) Avoid keeper
+       * the interrupt buffer from interrupt activity, (2) Avoid keeper
        * interrupts disabled for a long time, and (3) to handler
        * wraparound of the circular buffer indices.
        */
diff --git a/fs/inode/fs_filedetach.c b/fs/inode/fs_filedetach.c
index 8b13250cbc..b865e03b4a 100644
--- a/fs/inode/fs_filedetach.c
+++ b/fs/inode/fs_filedetach.c
@@ -84,7 +84,7 @@ static inline void _files_semtake(FAR struct filelist *list)
  * Name: file_detach
  *
  * Description:
- *   This function is used to device drivers to create a task-independent
+ *   This function is used in device drivers to create a task-independent
  *   handle to an entity in the file system.  file_detach() duplicates the
  *   'struct file' that underlies the file descriptor, then closes the file
  *   descriptor.