STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
tty_ldisc_deinit(tty);
put_device(tty->dev);
kvfree(tty->write_buf);
- tty->magic = 0xDEADDEAD;
kfree(tty);
}
imajor(inode), iminor(inode), routine);
return 1;
}
- if (tty->magic != TTY_MAGIC) {
- pr_warn("(%d:%d): %s: bad magic number\n",
- imajor(inode), iminor(inode), routine);
- return 1;
- }
#endif
return 0;
}
if (tty->ops->cleanup)
tty->ops->cleanup(tty);
- tty->magic = 0;
tty_driver_kref_put(driver);
module_put(owner);
return NULL;
kref_init(&tty->kref);
- tty->magic = TTY_MAGIC;
if (tty_ldisc_init(tty)) {
kfree(tty);
return NULL;
void tty_lock(struct tty_struct *tty)
{
- if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
- return;
tty_kref_get(tty);
mutex_lock(&tty->legacy_mutex);
}
{
int ret;
- if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
- return -EIO;
tty_kref_get(tty);
ret = mutex_lock_interruptible(&tty->legacy_mutex);
if (ret)
void tty_unlock(struct tty_struct *tty)
{
- if (WARN(tty->magic != TTY_MAGIC, "U Bad %p\n", tty))
- return;
mutex_unlock(&tty->legacy_mutex);
tty_kref_put(tty);
}
/**
* struct tty_struct - state associated with a tty while open
*
- * @magic: magic value set early in @alloc_tty_struct to %TTY_MAGIC, for
- * debugging purposes
* @kref: reference counting by tty_kref_get() and tty_kref_put(), reaching zero
* frees the structure
* @dev: class device or %NULL (e.g. ptys, serdev)
* &struct tty_port.
*/
struct tty_struct {
- int magic;
struct kref kref;
struct device *dev;
struct tty_driver *driver;
struct list_head list;
};
-/* tty magic number */
-#define TTY_MAGIC 0x5401
-
/**
* DOC: TTY Struct Flags
*