vt: push down the tty lock so we can see what is left to tackle
At this point we have the tty_lock guarding a couple of oddities, plus the
translation and unimap still.
We also extend the console_lock in a couple of spots where coverage is wrong
and switch vcs_open to use the right lock !
[Fixed the locking issue Jiri reported]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 7a367ff..fa7268a 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -608,10 +608,10 @@
unsigned int currcons = iminor(inode) & 127;
int ret = 0;
- tty_lock();
+ console_lock();
if(currcons && !vc_cons_allocated(currcons-1))
ret = -ENXIO;
- tty_unlock();
+ console_unlock();
return ret;
}