VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)

[linux-2.6.git] / drivers / char / isicom.c

diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index c609ebb..e865044 100644 (file)
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -90,7 +90,7 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp, unsigned  int c
 static void isicom_tx(unsigned long _data);
 static void isicom_start(struct tty_struct * tty);
 
-static unsigned char * tmp_buf = 0;
+static unsigned char * tmp_buf;
 static DECLARE_MUTEX(tmp_buf_sem);
 
 /*   baud index mappings from linux defns to isi */
@@ -132,9 +132,10 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp,
        unsigned long t;
        unsigned short word_count, base;
        bin_frame frame;
+       void __user *argp = (void __user *)arg;
        /* exec_record exec_rec; */
        
-       if(get_user(card, (int *)arg))
+       if(get_user(card, (int __user *)argp))
                return -EFAULT;
                
        if(card < 0 || card >= BOARD_COUNT)
@@ -208,13 +209,13 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp,
                                 return -EIO;
                        }
                        printk("-Done\n");
-                       return put_user(signature,(unsigned int*)arg);
+                       return put_user(signature,(unsigned __user *)argp);
                                                
        case    MIOCTL_LOAD_FIRMWARE:
                        if (!capable(CAP_SYS_ADMIN))
                                return -EPERM;
                                
-                       if(copy_from_user(&frame, (void *) arg, sizeof(bin_frame)))
+                       if(copy_from_user(&frame, argp, sizeof(bin_frame)))
                                return -EFAULT;
                        
                        if (WaitTillCardIsFree(base))
@@ -257,7 +258,7 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp,
                        if (!capable(CAP_SYS_ADMIN))
                                return -EPERM;
                                
-                       if(copy_from_user(&frame, (void *) arg, sizeof(bin_header)))
+                       if(copy_from_user(&frame, argp, sizeof(bin_header)))
                                return -EFAULT;
                        
                        if (WaitTillCardIsFree(base))
@@ -296,7 +297,7 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp,
                                return -EIO;
                        }       
                        
-                       if(copy_to_user((void *) arg, &frame, sizeof(bin_frame)))
+                       if(copy_to_user(argp, &frame, sizeof(bin_frame)))
                                return -EFAULT;
                        return 0;
        
@@ -1121,7 +1122,7 @@ static void isicom_close(struct tty_struct * tty, struct file * filp)
        if (tty->ldisc.flush_buffer)
                tty->ldisc.flush_buffer(tty);
        tty->closing = 0;
-       port->tty = 0;
+       port->tty = NULL;
        if (port->blocked_open) {
                if (port->close_delay) {
                        set_current_state(TASK_INTERRUPTIBLE);
@@ -1334,7 +1335,7 @@ static int isicom_tiocmset(struct tty_struct *tty, struct file *file,
 }                      
 
 static int isicom_set_serial_info(struct isi_port * port,
-                                       struct serial_struct * info)
+                                       struct serial_struct __user *info)
 {
        struct serial_struct newinfo;
        unsigned long flags;
@@ -1370,7 +1371,7 @@ static int isicom_set_serial_info(struct isi_port * port,
 }              
 
 static int isicom_get_serial_info(struct isi_port * port, 
-                                       struct serial_struct * info)
+                                       struct serial_struct __user *info)
 {
        struct serial_struct out_info;
        
@@ -1392,6 +1393,7 @@ static int isicom_ioctl(struct tty_struct * tty, struct file * filp,
                        unsigned int cmd, unsigned long arg) 
 {
        struct isi_port * port = (struct isi_port *) tty->driver_data;
+       void __user *argp = (void __user *)arg;
        int retval;
 
        if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
@@ -1416,10 +1418,10 @@ static int isicom_ioctl(struct tty_struct * tty, struct file * filp,
                        return 0;
                        
                case TIOCGSOFTCAR:
-                       return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *) arg);
+                       return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *)argp);
                        
                case TIOCSSOFTCAR:
-                       if(get_user(arg, (unsigned long *) arg))
+                       if(get_user(arg, (unsigned long __user *) argp))
                                return -EFAULT;
                        tty->termios->c_cflag =
                                ((tty->termios->c_cflag & ~CLOCAL) |
@@ -1427,12 +1429,10 @@ static int isicom_ioctl(struct tty_struct * tty, struct file * filp,
                        return 0;       
                        
                case TIOCGSERIAL:
-                       return isicom_get_serial_info(port, 
-                                       (struct serial_struct *) arg);
+                       return isicom_get_serial_info(port, argp);
                
                case TIOCSSERIAL:
-                       return isicom_set_serial_info(port,
-                                       (struct serial_struct *) arg);
+                       return isicom_set_serial_info(port, argp);
                                        
                default:
                        return -ENOIOCTLCMD;                                            
@@ -1545,7 +1545,7 @@ static void isicom_hangup(struct tty_struct * tty)
        isicom_shutdown_port(port);
        port->count = 0;
        port->flags &= ~ASYNC_NORMAL_ACTIVE;
-       port->tty = 0;
+       port->tty = NULL;
        wake_up_interruptible(&port->open_wait);
 }