mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
viocons: BKL locking
For some weird reason I can't ascertain (translation "I think its broken") the viocons driver calls directly into the n_tty ldisc code even if another ldisc is in use. It'll probably break if you do that but I'm just fixing the locking and adding a comment that its horked. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
1f8cabb705
commit
dd9a451aad
1 changed files with 5 additions and 2 deletions
|
@ -704,8 +704,11 @@ static int viotty_ioctl(struct tty_struct *tty, struct file *file,
|
|||
case KDSKBLED:
|
||||
return 0;
|
||||
}
|
||||
|
||||
return n_tty_ioctl(tty, file, cmd, arg);
|
||||
/* FIXME: WTF is this being called for ??? */
|
||||
lock_kernel();
|
||||
ret = n_tty_ioctl(tty, file, cmd, arg);
|
||||
unlock_kernel();
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
Loading…
Reference in a new issue