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tty: vt: reformat tioclinux()

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Reformat tioclinux() to what we are used to. That is:
* format switch-case (one less indent level),
* format comments (the same indent level), and
* add a newline before return.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230420093559.13200-1-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-04-20 11:35:56 +02:00 committed by Greg Kroah-Hartman
parent f06c2a9000
commit 6b97370b2c
1 changed files with 84 additions and 83 deletions
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167
drivers/tty/vt/vt.c
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@ -3143,93 +3143,94 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
return -EFAULT;
ret = 0;
switch (type)
{
case TIOCL_SETSEL:
ret = set_selection_user((struct tiocl_selection
__user *)(p+1), tty);
break;
case TIOCL_PASTESEL:
ret = paste_selection(tty);
break;
case TIOCL_UNBLANKSCREEN:
console_lock();
unblank_screen();
console_unlock();
break;
case TIOCL_SELLOADLUT:
console_lock();
ret = sel_loadlut(p);
console_unlock();
break;
case TIOCL_GETSHIFTSTATE:
/*
* Make it possible to react to Shift+Mousebutton.
* Note that 'shift_state' is an undocumented
* kernel-internal variable; programs not closely
* related to the kernel should not use this.
*/
data = vt_get_shift_state();
ret = put_user(data, p);
break;
case TIOCL_GETMOUSEREPORTING:
console_lock(); /* May be overkill */
data = mouse_reporting();
console_unlock();
ret = put_user(data, p);
break;
case TIOCL_SETVESABLANK:
console_lock();
ret = set_vesa_blanking(p);
console_unlock();
break;
case TIOCL_GETKMSGREDIRECT:
data = vt_get_kmsg_redirect();
ret = put_user(data, p);
break;
case TIOCL_SETKMSGREDIRECT:
if (!capable(CAP_SYS_ADMIN)) {
ret = -EPERM;
} else {
if (get_user(data, p+1))
ret = -EFAULT;
else
vt_kmsg_redirect(data);
}
break;
case TIOCL_GETFGCONSOLE:
/* No locking needed as this is a transiently
correct return anyway if the caller hasn't
disabled switching */
ret = fg_console;
break;
case TIOCL_SCROLLCONSOLE:
if (get_user(lines, (s32 __user *)(p+4))) {
switch (type) {
case TIOCL_SETSEL:
ret = set_selection_user((struct tiocl_selection
__user *)(p+1), tty);
break;
case TIOCL_PASTESEL:
ret = paste_selection(tty);
break;
case TIOCL_UNBLANKSCREEN:
console_lock();
unblank_screen();
console_unlock();
break;
case TIOCL_SELLOADLUT:
console_lock();
ret = sel_loadlut(p);
console_unlock();
break;
case TIOCL_GETSHIFTSTATE:
/*
* Make it possible to react to Shift+Mousebutton. Note that
* 'shift_state' is an undocumented kernel-internal variable;
* programs not closely related to the kernel should not use
* this.
*/
data = vt_get_shift_state();
ret = put_user(data, p);
break;
case TIOCL_GETMOUSEREPORTING:
console_lock(); /* May be overkill */
data = mouse_reporting();
console_unlock();
ret = put_user(data, p);
break;
case TIOCL_SETVESABLANK:
console_lock();
ret = set_vesa_blanking(p);
console_unlock();
break;
case TIOCL_GETKMSGREDIRECT:
data = vt_get_kmsg_redirect();
ret = put_user(data, p);
break;
case TIOCL_SETKMSGREDIRECT:
if (!capable(CAP_SYS_ADMIN)) {
ret = -EPERM;
} else {
if (get_user(data, p+1))
ret = -EFAULT;
} else {
/* Need the console lock here. Note that lots
of other calls need fixing before the lock
is actually useful ! */
console_lock();
scrollfront(vc_cons[fg_console].d, lines);
console_unlock();
ret = 0;
}
break;
case TIOCL_BLANKSCREEN: /* until explicitly unblanked, not only poked */
else
vt_kmsg_redirect(data);
}
break;
case TIOCL_GETFGCONSOLE:
/*
* No locking needed as this is a transiently correct return
* anyway if the caller hasn't disabled switching.
*/
ret = fg_console;
break;
case TIOCL_SCROLLCONSOLE:
if (get_user(lines, (s32 __user *)(p+4))) {
ret = -EFAULT;
} else {
/*
* Needs the console lock here. Note that lots of other
* calls need fixing before the lock is actually useful!
*/
console_lock();
ignore_poke = 1;
do_blank_screen(0);
scrollfront(vc_cons[fg_console].d, lines);
console_unlock();
break;
case TIOCL_BLANKEDSCREEN:
ret = console_blanked;
break;
default:
ret = -EINVAL;
break;
ret = 0;
}
break;
case TIOCL_BLANKSCREEN: /* until explicitly unblanked, not only poked */
console_lock();
ignore_poke = 1;
do_blank_screen(0);
console_unlock();
break;
case TIOCL_BLANKEDSCREEN:
ret = console_blanked;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}