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Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/con3215.c17
-rw-r--r--drivers/s390/char/fs3270.c17
-rw-r--r--drivers/s390/char/tape_block.c39
-rw-r--r--drivers/s390/char/tape_char.c18
-rw-r--r--drivers/s390/char/vmcp.c12
5 files changed, 35 insertions, 68 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 9d61683..59ec073 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1037,22 +1037,6 @@ static void tty3215_flush_buffer(struct tty_struct *tty)
}
/*
- * Currently we don't have any io controls for 3215 ttys
- */
-static int tty3215_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- switch (cmd) {
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-/*
* Disable reading from a 3215 tty
*/
static void tty3215_throttle(struct tty_struct * tty)
@@ -1117,7 +1101,6 @@ static const struct tty_operations tty3215_ops = {
.write_room = tty3215_write_room,
.chars_in_buffer = tty3215_chars_in_buffer,
.flush_buffer = tty3215_flush_buffer,
- .ioctl = tty3215_ioctl,
.throttle = tty3215_throttle,
.unthrottle = tty3215_unthrottle,
.stop = tty3215_stop,
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 247b2b9..31c59b0 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/smp_lock.h>
+#include <asm/compat.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/ebcdic.h>
@@ -322,6 +323,7 @@ fs3270_write(struct file *filp, const char __user *data, size_t count, loff_t *o
static long
fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ char __user *argp;
struct fs3270 *fp;
struct raw3270_iocb iocb;
int rc;
@@ -329,6 +331,10 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
fp = filp->private_data;
if (!fp)
return -ENODEV;
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (char __user *)arg;
rc = 0;
mutex_lock(&fs3270_mutex);
switch (cmd) {
@@ -339,10 +345,10 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
fp->write_command = arg;
break;
case TUBGETI:
- rc = put_user(fp->read_command, (char __user *) arg);
+ rc = put_user(fp->read_command, argp);
break;
case TUBGETO:
- rc = put_user(fp->write_command,(char __user *) arg);
+ rc = put_user(fp->write_command, argp);
break;
case TUBGETMOD:
iocb.model = fp->view.model;
@@ -351,8 +357,7 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
iocb.pf_cnt = 24;
iocb.re_cnt = 20;
iocb.map = 0;
- if (copy_to_user((char __user *) arg, &iocb,
- sizeof(struct raw3270_iocb)))
+ if (copy_to_user(argp, &iocb, sizeof(struct raw3270_iocb)))
rc = -EFAULT;
break;
}
@@ -511,8 +516,8 @@ static const struct file_operations fs3270_fops = {
.write = fs3270_write, /* write */
.unlocked_ioctl = fs3270_ioctl, /* ioctl */
.compat_ioctl = fs3270_ioctl, /* ioctl */
- .open = fs3270_open, /* open */
- .release = fs3270_close, /* release */
+ .open = fs3270_open, /* open */
+ .release = fs3270_close, /* release */
};
/*
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index 96816149..8d3d720 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -46,8 +46,6 @@
*/
static int tapeblock_open(struct block_device *, fmode_t);
static int tapeblock_release(struct gendisk *, fmode_t);
-static int tapeblock_ioctl(struct block_device *, fmode_t, unsigned int,
- unsigned long);
static int tapeblock_medium_changed(struct gendisk *);
static int tapeblock_revalidate_disk(struct gendisk *);
@@ -55,7 +53,6 @@ static const struct block_device_operations tapeblock_fops = {
.owner = THIS_MODULE,
.open = tapeblock_open,
.release = tapeblock_release,
- .ioctl = tapeblock_ioctl,
.media_changed = tapeblock_medium_changed,
.revalidate_disk = tapeblock_revalidate_disk,
};
@@ -416,42 +413,6 @@ tapeblock_release(struct gendisk *disk, fmode_t mode)
}
/*
- * Support of some generic block device IOCTLs.
- */
-static int
-tapeblock_ioctl(
- struct block_device * bdev,
- fmode_t mode,
- unsigned int command,
- unsigned long arg
-) {
- int rc;
- int minor;
- struct gendisk *disk = bdev->bd_disk;
- struct tape_device *device;
-
- rc = 0;
- BUG_ON(!disk);
- device = disk->private_data;
- BUG_ON(!device);
- minor = MINOR(bdev->bd_dev);
-
- DBF_LH(6, "tapeblock_ioctl(0x%0x)\n", command);
- DBF_LH(6, "device = %d:%d\n", tapeblock_major, minor);
-
- switch (command) {
- /* Refuse some IOCTL calls without complaining (mount). */
- case 0x5310: /* CDROMMULTISESSION */
- rc = -EINVAL;
- break;
- default:
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-/*
* Initialize block device frontend.
*/
int
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 2125ec7..539045a 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -18,6 +18,7 @@
#include <linux/proc_fs.h>
#include <linux/mtio.h>
#include <linux/smp_lock.h>
+#include <linux/compat.h>
#include <asm/uaccess.h>
@@ -37,8 +38,9 @@ static ssize_t tapechar_write(struct file *, const char __user *, size_t, loff_t
static int tapechar_open(struct inode *,struct file *);
static int tapechar_release(struct inode *,struct file *);
static long tapechar_ioctl(struct file *, unsigned int, unsigned long);
-static long tapechar_compat_ioctl(struct file *, unsigned int,
- unsigned long);
+#ifdef CONFIG_COMPAT
+static long tapechar_compat_ioctl(struct file *, unsigned int, unsigned long);
+#endif
static const struct file_operations tape_fops =
{
@@ -46,7 +48,9 @@ static const struct file_operations tape_fops =
.read = tapechar_read,
.write = tapechar_write,
.unlocked_ioctl = tapechar_ioctl,
+#ifdef CONFIG_COMPAT
.compat_ioctl = tapechar_compat_ioctl,
+#endif
.open = tapechar_open,
.release = tapechar_release,
};
@@ -457,15 +461,22 @@ tapechar_ioctl(struct file *filp, unsigned int no, unsigned long data)
return rc;
}
+#ifdef CONFIG_COMPAT
static long
tapechar_compat_ioctl(struct file *filp, unsigned int no, unsigned long data)
{
struct tape_device *device = filp->private_data;
int rval = -ENOIOCTLCMD;
+ unsigned long argp;
+ /* The 'arg' argument of any ioctl function may only be used for
+ * pointers because of the compat pointer conversion.
+ * Consider this when adding new ioctls.
+ */
+ argp = (unsigned long) compat_ptr(data);
if (device->discipline->ioctl_fn) {
mutex_lock(&device->mutex);
- rval = device->discipline->ioctl_fn(device, no, data);
+ rval = device->discipline->ioctl_fn(device, no, argp);
mutex_unlock(&device->mutex);
if (rval == -EINVAL)
rval = -ENOIOCTLCMD;
@@ -473,6 +484,7 @@ tapechar_compat_ioctl(struct file *filp, unsigned int no, unsigned long data)
return rval;
}
+#endif /* CONFIG_COMPAT */
/*
* Initialize character device frontend.
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index a6087ce..921dcda 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
+#include <asm/compat.h>
#include <asm/cpcmd.h>
#include <asm/debug.h>
#include <asm/uaccess.h>
@@ -139,21 +140,26 @@ vmcp_write(struct file *file, const char __user *buff, size_t count,
static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct vmcp_session *session;
+ int __user *argp;
int temp;
session = (struct vmcp_session *)file->private_data;
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (int __user *)arg;
if (mutex_lock_interruptible(&session->mutex))
return -ERESTARTSYS;
switch (cmd) {
case VMCP_GETCODE:
temp = session->resp_code;
mutex_unlock(&session->mutex);
- return put_user(temp, (int __user *)arg);
+ return put_user(temp, argp);
case VMCP_SETBUF:
free_pages((unsigned long)session->response,
get_order(session->bufsize));
session->response=NULL;
- temp = get_user(session->bufsize, (int __user *)arg);
+ temp = get_user(session->bufsize, argp);
if (get_order(session->bufsize) > 8) {
session->bufsize = PAGE_SIZE;
temp = -EINVAL;
@@ -163,7 +169,7 @@ static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case VMCP_GETSIZE:
temp = session->resp_size;
mutex_unlock(&session->mutex);
- return put_user(temp, (int __user *)arg);
+ return put_user(temp, argp);
default:
mutex_unlock(&session->mutex);
return -ENOIOCTLCMD;
generated by cgit v0.10.2 at 2024-11-14 13:46:33 (GMT)