Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[pandora-kernel.git] / drivers / misc / ibmasm / ibmasmfs.c
index b99dc50..22a7e8b 100644 (file)
  *
  * Copyright (C) IBM Corporation, 2004
  *
- * Author: Max Asböck <amax@us.ibm.com> 
+ * Author: Max Asböck <amax@us.ibm.com>
  *
  */
 
 /*
- * Parts of this code are based on an article by Jonathan Corbet 
+ * Parts of this code are based on an article by Jonathan Corbet
  * that appeared in Linux Weekly News.
  */
 
  * For each service processor the following files are created:
  *
  * command: execute dot commands
- *     write: execute a dot command on the service processor
- *     read: return the result of a previously executed dot command
+ *     write: execute a dot command on the service processor
+ *     read: return the result of a previously executed dot command
  *
  * events: listen for service processor events
- *     read: sleep (interruptible) until an event occurs
+ *     read: sleep (interruptible) until an event occurs
  *      write: wakeup sleeping event listener
  *
  * reverse_heartbeat: send a heartbeat to the service processor
- *     read: sleep (interruptible) until the reverse heartbeat fails
+ *     read: sleep (interruptible) until the reverse heartbeat fails
  *      write: wakeup sleeping heartbeat listener
  *
  * remote_video/width
  * remote_video/height
  * remote_video/width: control remote display settings
- *     write: set value
- *     read: read value
+ *     write: set value
+ *     read: read value
  */
 
 #include <linux/fs.h>
@@ -155,8 +155,8 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode)
 
 static struct dentry *ibmasmfs_create_file (struct super_block *sb,
                        struct dentry *parent,
-                       const char *name,
-                       struct file_operations *fops,
+                       const char *name,
+                       const struct file_operations *fops,
                        void *data,
                        int mode)
 {
@@ -261,7 +261,7 @@ static int command_file_close(struct inode *inode, struct file *file)
        struct ibmasmfs_command_data *command_data = file->private_data;
 
        if (command_data->command)
-               command_put(command_data->command);     
+               command_put(command_data->command);
 
        kfree(command_data);
        return 0;
@@ -348,7 +348,7 @@ static ssize_t command_file_write(struct file *file, const char __user *ubuff, s
 static int event_file_open(struct inode *inode, struct file *file)
 {
        struct ibmasmfs_event_data *event_data;
-       struct service_processor *sp; 
+       struct service_processor *sp;
 
        if (!inode->i_private)
                return -ENODEV;
@@ -563,17 +563,16 @@ static ssize_t remote_settings_file_write(struct file *file, const char __user *
        if (*offset != 0)
                return 0;
 
-       buff = kmalloc (count + 1, GFP_KERNEL);
+       buff = kzalloc (count + 1, GFP_KERNEL);
        if (!buff)
                return -ENOMEM;
 
-       memset(buff, 0x0, count + 1);
 
        if (copy_from_user(buff, ubuff, count)) {
                kfree(buff);
                return -EFAULT;
        }
-       
+
        value = simple_strtoul(buff, NULL, 10);
        writel(value, address);
        kfree(buff);
@@ -581,28 +580,28 @@ static ssize_t remote_settings_file_write(struct file *file, const char __user *
        return count;
 }
 
-static struct file_operations command_fops = {
+static const struct file_operations command_fops = {
        .open =         command_file_open,
        .release =      command_file_close,
        .read =         command_file_read,
        .write =        command_file_write,
 };
 
-static struct file_operations event_fops = {
+static const struct file_operations event_fops = {
        .open =         event_file_open,
        .release =      event_file_close,
        .read =         event_file_read,
        .write =        event_file_write,
 };
 
-static struct file_operations r_heartbeat_fops = {
+static const struct file_operations r_heartbeat_fops = {
        .open =         r_heartbeat_file_open,
        .release =      r_heartbeat_file_close,
        .read =         r_heartbeat_file_read,
        .write =        r_heartbeat_file_write,
 };
 
-static struct file_operations remote_settings_fops = {
+static const struct file_operations remote_settings_fops = {
        .open =         remote_settings_file_open,
        .release =      remote_settings_file_close,
        .read =         remote_settings_file_read,