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authorAlan Cox <alan@redhat.com>2009-01-15 16:30:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-15 23:48:35 +0300
commitc0253eec2a8e1140dd9672a1efe095cdcf5811d0 (patch)
treec48dc5283ca4f01005295a97a28e532818aedce6 /drivers/serial
parent5393f780277165f282a37ed82dd878159ec9dad5 (diff)
downloadlinux-c0253eec2a8e1140dd9672a1efe095cdcf5811d0.tar.xz
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 <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial')
0 files changed, 0 insertions, 0 deletions