diff options
| author | Alan Cox <[email protected]> | 2009-01-15 13:30:25 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2009-01-15 12:48:35 -0800 |
| commit | c0253eec2a8e1140dd9672a1efe095cdcf5811d0 (patch) | |
| tree | c48dc5283ca4f01005295a97a28e532818aedce6 /net/lapb/lapb_iface.c | |
| parent | 5393f780277165f282a37ed82dd878159ec9dad5 (diff) | |
tty: Fix race in the flush for some ldiscs
If you issue an ioctl to flush a tty as the line discipline is changing or
otherwise unplugged you can get a crash. The bug is very old but the rest
of the BKL lock dropping and some very "good" luck on Ingo's part caught
an example.
Use the correct ldisc_ref form so that we wait for the ldisc change to
complete and then flush
Signed-off-by: Alan Cox <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions