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TTY: devpts, don't care about TTY in devpts_get_tty

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The goal is to stop setting and using tty->driver_data in devpts code.
It should be used solely by the driver's code, pty in this case.

First, here we remove TTY from devpts_get_tty and rename it to
devpts_get_priv. Note we do not remove type safety, we just shift the
[implicit] (void *) cast one layer up.

index was unused in devpts_get_tty, so remove that from the prototype
too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby
2012-10-18 22:26:27 +02:00
committed by Greg Kroah-Hartman
parent cee4ad1ed9
commit 8fcbaa2b7f
3 changed files with 8 additions and 10 deletions
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2
drivers/tty/pty.c
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@@ -547,7 +547,7 @@ static struct tty_struct *pts_unix98_lookup(struct tty_driver *driver,
struct tty_struct *tty;
mutex_lock(&devpts_mutex);
tty = devpts_get_tty(pts_inode, idx);
tty = devpts_get_priv(pts_inode);
mutex_unlock(&devpts_mutex);
/* Master must be open before slave */
if (!tty)