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Make program style consistent again

Jim Huang 3 years ago
parent
commit
8c12c8dce1
3 changed files with 27 additions and 27 deletions
  1. 8 8
      examples/chardev2.c
  2. 12 12
      examples/print_string.c
  3. 7 7
      examples/sleep.c

+ 8 - 8
examples/chardev2.c

@@ -81,9 +81,9 @@ static ssize_t device_read(struct file *file,   /* see include/linux/fs.h   */
     /* Actually put the data into the buffer */
     while (length && *Message_Ptr) {
         /* Because the buffer is in the user data segment, not the kernel
-	 * data segment, assignment would not work. Instead, we have to
-	 * use put_user which copies data from the kernel data segment to
-	 * the user data segment.
+         * data segment, assignment would not work. Instead, we have to
+         * use put_user which copies data from the kernel data segment to
+         * the user data segment.
          */
         put_user(*(Message_Ptr++), buffer++);
         length--;
@@ -137,8 +137,8 @@ long device_ioctl(struct file *file,      /* ditto */
     switch (ioctl_num) {
     case IOCTL_SET_MSG:
         /* Receive a pointer to a message (in user space) and set that to
-	 * be the device's message.  Get the parameter given to ioctl by
-	 * the process.
+         * be the device's message.  Get the parameter given to ioctl by
+         * the process.
          */
         temp = (char *) ioctl_param;
 
@@ -152,19 +152,19 @@ long device_ioctl(struct file *file,      /* ditto */
 
     case IOCTL_GET_MSG:
         /* Give the current message to the calling process - the parameter
-	 * we got is a pointer, fill it.
+         * we got is a pointer, fill it.
          */
         i = device_read(file, (char *) ioctl_param, 99, 0);
 
         /* Put a zero at the end of the buffer, so it will be properly
-	 * terminated.
+         * terminated.
          */
         put_user('\0', (char *) ioctl_param + i);
         break;
 
     case IOCTL_GET_NTH_BYTE:
         /* This ioctl is both input (ioctl_param) and output (the return
-	 * value of this function).
+         * value of this function).
          */
         return Message[ioctl_param];
         break;

+ 12 - 12
examples/print_string.c

@@ -28,16 +28,16 @@ static void print_string(char *str)
          * kernel's memory segment.
          *
          * The function's 1st parameter is the tty to write to, because the
-	 * same function would normally be used for all tty's of a certain
-	 * type.
+         * same function would normally be used for all tty's of a certain
+         * type.
          * The 2nd parameter is a pointer to a string.
          * The 3rd parameter is the length of the string.
          *
          * As you will see below, sometimes it's necessary to use
          * preprocessor stuff to create code that works for different
          * kernel versions. The (naive) approach we've taken here does not
-	 * scale well. The right way to deal with this is described in
-	 * section 2 of
+         * scale well. The right way to deal with this is described in
+         * section 2 of
          * linux/Documentation/SubmittingPatches
          */
         (ttyops->write)(my_tty,       /* The tty itself */
@@ -45,16 +45,16 @@ static void print_string(char *str)
                         strlen(str)); /* Length */
 
         /* ttys were originally hardware devices, which (usually) strictly
-	 * followed the ASCII standard. In ASCII, to move to a new line you
-	 * need two characters, a carriage return and a line feed. On Unix,
-	 * the ASCII line feed is used for both purposes - so we can not
-	 * just use \n, because it would not have a carriage return and the
-	 * next line will start at the column right after the line feed.
+         * followed the ASCII standard. In ASCII, to move to a new line you
+         * need two characters, a carriage return and a line feed. On Unix,
+         * the ASCII line feed is used for both purposes - so we can not
+         * just use \n, because it would not have a carriage return and the
+         * next line will start at the column right after the line feed.
          *
          * This is why text files are different between Unix and MS Windows.
-	 * In CP/M and derivatives, like MS-DOS and MS Windows, the ASCII
-	 * standard was strictly adhered to, and therefore a newline requirs
-	 * both a LF and a CR.
+         * In CP/M and derivatives, like MS-DOS and MS Windows, the ASCII
+         * standard was strictly adhered to, and therefore a newline requirs
+         * both a LF and a CR.
          */
         (ttyops->write)(my_tty, "\015\012", 2);
     }

+ 7 - 7
examples/sleep.c

@@ -81,7 +81,7 @@ int Already_Open = 0;
 
 /* Queue of processes who want our file */
 DECLARE_WAIT_QUEUE_HEAD(WaitQ);
- 
+
 /* Called when the /proc file is opened */
 static int module_open(struct inode *inode, struct file *file)
 {
@@ -104,7 +104,7 @@ static int module_open(struct inode *inode, struct file *file)
         int i, is_sig = 0;
 
         /* This function puts the current process, including any system
-	 * calls, such as us, to sleep.  Execution will be resumed right
+         * calls, such as us, to sleep.  Execution will be resumed right
          * after the function call, either because somebody called
          * wake_up(&WaitQ) (only module_close does that, when the file
          * is closed) or when a signal, such as Ctrl-C, is sent
@@ -121,11 +121,11 @@ static int module_open(struct inode *inode, struct file *file)
 
         if (is_sig) {
             /* It is important to put module_put(THIS_MODULE) here, because
-	     * for processes where the open is interrupted there will never
-	     * be a corresponding close. If we do not decrement the usage
-	     * count here, we will be left with a positive usage count
-	     * which we will have no way to bring down to zero, giving us
-	     * an immortal module, which can only be killed by rebooting
+             * for processes where the open is interrupted there will never
+             * be a corresponding close. If we do not decrement the usage
+             * count here, we will be left with a positive usage count
+             * which we will have no way to bring down to zero, giving us
+             * an immortal module, which can only be killed by rebooting
              * the machine.
              */
             module_put(THIS_MODULE);