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

[linux-2.6.git] / drivers / ide / ide-tape.c

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 7603f6a..d19ee54 100644 (file)
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2674,7 +2674,7 @@ static idetape_stage_t *idetape_kmalloc_stage (idetape_tape_t *tape)
        return __idetape_kmalloc_stage(tape, 0, 0);
 }
 
-static void idetape_copy_stage_from_user (idetape_tape_t *tape, idetape_stage_t *stage, const char *buf, int n)
+static void idetape_copy_stage_from_user (idetape_tape_t *tape, idetape_stage_t *stage, const char __user *buf, int n)
 {
        struct idetape_bh *bh = tape->bh;
        int count;
@@ -2701,7 +2701,7 @@ static void idetape_copy_stage_from_user (idetape_tape_t *tape, idetape_stage_t
        tape->bh = bh;
 }
 
-static void idetape_copy_stage_to_user (idetape_tape_t *tape, char *buf, idetape_stage_t *stage, int n)
+static void idetape_copy_stage_to_user (idetape_tape_t *tape, char __user *buf, idetape_stage_t *stage, int n)
 {
        struct idetape_bh *bh = tape->bh;
        int count;
@@ -3610,6 +3610,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, unsigned l
 {
        idetape_tape_t *tape = drive->driver_data;
        idetape_config_t config;
+       void __user *argp = (void __user *)arg;
 
 #if IDETAPE_DEBUG_LOG  
        if (tape->debug_level >= 4)
@@ -3617,7 +3618,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, unsigned l
 #endif /* IDETAPE_DEBUG_LOG */
        switch (cmd) {
                case 0x0340:
-                       if (copy_from_user ((char *) &config, (char *) arg, sizeof (idetape_config_t)))
+                       if (copy_from_user(&config, argp, sizeof (idetape_config_t)))
                                return -EFAULT;
                        tape->best_dsc_rw_frequency = config.dsc_rw_frequency;
                        tape->max_stages = config.nr_stages;
@@ -3625,7 +3626,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, unsigned l
                case 0x0350:
                        config.dsc_rw_frequency = (int) tape->best_dsc_rw_frequency;
                        config.nr_stages = tape->max_stages; 
-                       if (copy_to_user((char *) arg, (char *) &config, sizeof (idetape_config_t)))
+                       if (copy_to_user(argp, &config, sizeof (idetape_config_t)))
                                return -EFAULT;
                        break;
                default:
@@ -3747,17 +3748,13 @@ static int idetape_space_over_filemarks (ide_drive_t *drive,short mt_op,int mt_c
  *     will no longer hit performance.
  *      This is not applicable to Onstream.
  */
-static ssize_t idetape_chrdev_read (struct file *file, char *buf,
+static ssize_t idetape_chrdev_read (struct file *file, char __user *buf,
                                    size_t count, loff_t *ppos)
 {
        ide_drive_t *drive = file->private_data;
        idetape_tape_t *tape = drive->driver_data;
        ssize_t bytes_read,temp, actually_read = 0, rc;
 
-       if (ppos != &file->f_pos) {
-               /* "A request was outside the capabilities of the device." */
-               return -ENXIO;
-       }
 #if IDETAPE_DEBUG_LOG
        if (tape->debug_level >= 3)
                printk(KERN_INFO "ide-tape: Reached idetape_chrdev_read, count %Zd\n", count);
@@ -3810,18 +3807,13 @@ finish:
        return actually_read;
 }
 
-static ssize_t idetape_chrdev_write (struct file *file, const char *buf,
+static ssize_t idetape_chrdev_write (struct file *file, const char __user *buf,
                                     size_t count, loff_t *ppos)
 {
        ide_drive_t *drive = file->private_data;
        idetape_tape_t *tape = drive->driver_data;
        ssize_t retval, actually_written = 0;
 
-       if (ppos != &file->f_pos) {
-               /* "A request was outside the capabilities of the device." */
-               return -ENXIO;
-       }
-
        /* The drive is write protected. */
        if (tape->write_prot)
                return -EACCES;
@@ -4127,6 +4119,7 @@ static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigne
        struct mtget mtget;
        struct mtpos mtpos;
        int block_offset = 0, position = tape->first_frame_position;
+       void __user *argp = (void __user *)arg;
 
 #if IDETAPE_DEBUG_LOG
        if (tape->debug_level >= 3)
@@ -4146,7 +4139,7 @@ static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigne
        }
        switch (cmd) {
                case MTIOCTOP:
-                       if (copy_from_user((char *) &mtop, (char *) arg, sizeof (struct mtop)))
+                       if (copy_from_user(&mtop, argp, sizeof (struct mtop)))
                                return -EFAULT;
                        return (idetape_mtioctop(drive,mtop.mt_op,mtop.mt_count));
                case MTIOCGET:
@@ -4157,12 +4150,12 @@ static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigne
                        if (tape->drv_write_prot) {
                                mtget.mt_gstat |= GMT_WR_PROT(0xffffffff);
                        }
-                       if (copy_to_user((char *) arg,(char *) &mtget, sizeof(struct mtget)))
+                       if (copy_to_user(argp, &mtget, sizeof(struct mtget)))
                                return -EFAULT;
                        return 0;
                case MTIOCPOS:
                        mtpos.mt_blkno = position / tape->user_bs_factor - block_offset;
-                       if (copy_to_user((char *) arg,(char *) &mtpos, sizeof(struct mtpos)))
+                       if (copy_to_user(argp, &mtpos, sizeof(struct mtpos)))
                                return -EFAULT;
                        return 0;
                default:
@@ -4185,6 +4178,7 @@ static int idetape_chrdev_open (struct inode *inode, struct file *filp)
        idetape_pc_t pc;
        int retval;
 
+       nonseekable_open(inode, filp);
 #if IDETAPE_DEBUG_LOG
        printk(KERN_INFO "ide-tape: Reached idetape_chrdev_open\n");
 #endif /* IDETAPE_DEBUG_LOG */
@@ -4813,7 +4807,7 @@ static int idetape_ioctl(struct inode *inode, struct file *file,
 {
        struct block_device *bdev = inode->i_bdev;
        ide_drive_t *drive = bdev->bd_disk->private_data;
-       int err = generic_ide_ioctl(bdev, cmd, arg);
+       int err = generic_ide_ioctl(file, bdev, cmd, arg);
        if (err == -EINVAL)
                err = idetape_blkdev_ioctl(drive, cmd, arg);
        return err;