vt: push down tioclinux cases
Some of this ventures into selection which is still a complete lost cause. We
are not making it any worse. It's completely busted anyway.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c
index 738e45a..2a50916 100644
--- a/drivers/tty/vt/selection.c
+++ b/drivers/tty/vt/selection.c
@@ -75,7 +75,7 @@
/*
* User settable table: what characters are to be considered alphabetic?
- * 256 bits
+ * 256 bits. FIXME: Needs a locking model.
*/
static u32 inwordLut[8]={
0x00000000, /* control chars */
@@ -307,7 +307,8 @@
* queue of the tty associated with the current console.
* Invoked by ioctl().
*
- * Locking: always called with BTM from vt_ioctl
+ * Locking: called without locks. Calls the ldisc wrongly with
+ * unsafe methods,
*/
int paste_selection(struct tty_struct *tty)
{
@@ -322,13 +323,12 @@
poke_blanked_console();
console_unlock();
+ /* FIXME: wtf is this supposed to achieve ? */
ld = tty_ldisc_ref(tty);
- if (!ld) {
- tty_unlock();
+ if (!ld)
ld = tty_ldisc_ref_wait(tty);
- tty_lock();
- }
+ /* FIXME: this is completely unsafe */
add_wait_queue(&vc->paste_wait, &wait);
while (sel_buffer && sel_buffer_lth > pasted) {
set_current_state(TASK_INTERRUPTIBLE);