fix typo on pipe_common

diff --git a/os/drivers/pipes/pipe_common.c b/os/drivers/pipes/pipe_common.c
index f652228..31ec931 100644 (file)
--- a/os/drivers/pipes/pipe_common.c
+++ b/os/drivers/pipes/pipe_common.c
@@ -1,6 +1,6 @@
 /****************************************************************************
  *
- * Copyright 2016 Samsung Electronics All Rights Reserved.
+ * Copyright 2016-2017 Samsung Electronics All Rights Reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -203,7 +203,7 @@ int pipecommon_open(FAR struct file *filep)
 
        DEBUGASSERT(dev);
 
-       /* Make sure that we have exclusive access to the device structure.  The
+       /* Make sure that we have exclusive access to the device structure. The
         * sem_wait() call should fail only if we are awakened by a signal.
         */
 
@@ -330,7 +330,7 @@ int pipecommon_close(FAR struct file *filep)
                }
        }
 
-       /* What is the buffer management policy?  Do we free the buffe when the
+       /* What is the buffer management policy?  Do we free the buffer when the
         * last client closes the pipe policy 0, or when the buffer becomes empty.
         * In the latter case, the buffer data will remain valid and can be
         * obtained when the pipe is re-opened.
@@ -466,7 +466,7 @@ ssize_t pipecommon_write(FAR struct file *filep, FAR const char *buffer, size_t
                return 0;
        }
 
-       /* At present, this method cannot be called from interrupt handlers.  That is
+       /* At present, this method cannot be called from interrupt handlers. That is
         * because it calls sem_wait (via pipecommon_semtake below) and sem_wait cannot
         * be called from interrupt level.  This actually happens fairly commonly
         * IF dbg() is called from interrupt handlers and stdout is being redirected
@@ -523,7 +523,7 @@ ssize_t pipecommon_write(FAR struct file *filep, FAR const char *buffer, size_t
                                return len;
                        }
                } else {
-                       /* There is not enough room for the next byte.  Was anything written in this pass? */
+                       /* There is not enough room for the next byte. Was anything written in this pass? */
 
                        if (last < nwritten) {
                                /* Yes.. Notify all of the waiting readers that more data is available */
@@ -571,11 +571,11 @@ int pipecommon_poll(FAR struct file *filep, FAR struct pollfd *fds, bool setup)
 
        DEBUGASSERT(dev && fds);
 
-       /* Are we setting up the poll?  Or tearing it down? */
+       /* Are we setting up the poll? Or tearing it down? */
 
        pipecommon_semtake(&dev->d_bfsem);
        if (setup) {
-               /* This is a request to set up the poll.  Find an available
+               /* This is a request to set up the poll. Find an available
                 * slot for the poll structure reference
                 */