sched, autogroup: Fix reference leak

The cgroup exit mess also uncovered a struct autogroup reference leak.
copy_process() was simply freeing vs putting the signal_struct,
stranding a reference.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Oleg Nesterov <oleg@redhat.com>
LKML-Reference: <1293784350.6839.2.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/fork.c b/kernel/fork.c
index b6f2475f1e83a9f81e7b5ea6c003d8cb60f5a774..06724449596614c13d78495a26c53cf6f845658d 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1317,7 +1317,7 @@ bad_fork_cleanup_mm:
        }
 bad_fork_cleanup_signal:
        if (!(clone_flags & CLONE_THREAD))
-               free_signal_struct(p->signal);
+               put_signal_struct(p->signal);
 bad_fork_cleanup_sighand:
        __cleanup_sighand(p->sighand);
 bad_fork_cleanup_fs: