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| author | WANG Cong <amwang@redhat.com> | 2011-08-18 20:36:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:09 -0700 |
| commit | 70a4888b98f8fe19323a7a33d8d55be5d22513e8 (patch) | |
| tree | 96c04a67bf267b3f5db230b66ffdcf4f35b40fab | |
| parent | f4e97b682ac92d2aed3db68f396b022113d9ad30 (diff) | |
| download | lwn-70a4888b98f8fe19323a7a33d8d55be5d22513e8.tar.gz lwn-70a4888b98f8fe19323a7a33d8d55be5d22513e8.zip | |
sched: Fix a memory leak in __sdt_free()
commit feff8fa0075bdfd43c841e9d689ed81adda988d6 upstream.
This patch fixes the following memory leak:
unreferenced object 0xffff880107266800 (size 512):
comm "sched-powersave", pid 3718, jiffies 4323097853 (age 27495.450s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff81133940>] create_object+0x187/0x28b
[<ffffffff814ac103>] kmemleak_alloc+0x73/0x98
[<ffffffff811232ba>] __kmalloc_node+0x104/0x159
[<ffffffff81044b98>] kzalloc_node.clone.97+0x15/0x17
[<ffffffff8104cb90>] build_sched_domains+0xb7/0x7f3
[<ffffffff8104d4df>] partition_sched_domains+0x1db/0x24a
[<ffffffff8109ee4a>] do_rebuild_sched_domains+0x3b/0x47
[<ffffffff810a00c7>] rebuild_sched_domains+0x10/0x12
[<ffffffff8104d5ba>] sched_power_savings_store+0x6c/0x7b
[<ffffffff8104d5df>] sched_mc_power_savings_store+0x16/0x18
[<ffffffff8131322c>] sysdev_class_store+0x20/0x22
[<ffffffff81193876>] sysfs_write_file+0x108/0x144
[<ffffffff81135b10>] vfs_write+0xaf/0x102
[<ffffffff81135d23>] sys_write+0x4d/0x74
[<ffffffff814c8a42>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1313671017-4112-1-git-send-email-amwang@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | kernel/sched.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ce2a3406ec01..8b3736076ac6 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7423,6 +7423,7 @@ static void __sdt_free(const struct cpumask *cpu_map) struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j); if (sd && (sd->flags & SD_OVERLAP)) free_sched_groups(sd->groups, 0); + kfree(*per_cpu_ptr(sdd->sd, j)); kfree(*per_cpu_ptr(sdd->sg, j)); kfree(*per_cpu_ptr(sdd->sgp, j)); } |