linux-kernel - [tip:sched/core] sched, autogroup: Fix reference leak

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Message-ID: <tip-101e5f77bf35679809586e250b6c62193d2ed179@git.kernel.org>
Date:	Tue, 4 Jan 2011 14:19:13 GMT
From:	tip-bot for Mike Galbraith <efault@....de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	a.p.zijlstra@...llo.nl, efault@....de, oleg@...hat.com,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:sched/core] sched, autogroup: Fix reference leak

Commit-ID:  101e5f77bf35679809586e250b6c62193d2ed179
Gitweb:     http://git.kernel.org/tip/101e5f77bf35679809586e250b6c62193d2ed179
Author:     Mike Galbraith <efault@....de>
AuthorDate: Fri, 31 Dec 2010 09:32:30 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 4 Jan 2011 15:10:36 +0100

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@....de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Oleg Nesterov <oleg@...hat.com>
LKML-Reference: <1293784350.6839.2.camel@...ge.simson.net>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/fork.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index b6f2475..0672444 100644
--- 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:
--
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