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| author | Alan Cox <alan@redhat.com> | 2008-10-13 10:37:26 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 09:51:40 -0700 |
| commit | 9c9f4ded90a59eee84e15f5fd38c03d60184e112 (patch) | |
| tree | 925a7f7c30136477b3f8551123fd86b355fd60fb /kernel/sys.c | |
| parent | 348eb12e5598be97400c749d3d93a71856ae0b2b (diff) | |
| download | lwn-9c9f4ded90a59eee84e15f5fd38c03d60184e112.tar.gz lwn-9c9f4ded90a59eee84e15f5fd38c03d60184e112.zip | |
tty: Add a kref count
Introduce a kref to the tty structure and use it to protect the tty->signal
tty references. For now we don't introduce it for anything else.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 038a7bc0901d..234d9454294e 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1060,9 +1060,7 @@ asmlinkage long sys_setsid(void) group_leader->signal->leader = 1; __set_special_pids(sid); - spin_lock(&group_leader->sighand->siglock); - group_leader->signal->tty = NULL; - spin_unlock(&group_leader->sighand->siglock); + proc_clear_tty(group_leader); err = session; out: |