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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2009-10-26 16:49:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-29 07:39:29 -0700 |
| commit | b05ca7385a2848abdc72051f832722641daed8b0 (patch) | |
| tree | ce0463be127434f25f23025142f2313d2dae21ab | |
| parent | ab8a3e14e6f8e567560f664bbd29aefb306a274e (diff) | |
| download | linux-b05ca7385a2848abdc72051f832722641daed8b0.tar.gz linux-b05ca7385a2848abdc72051f832722641daed8b0.tar.bz2 linux-b05ca7385a2848abdc72051f832722641daed8b0.zip | |
do_mbind(): fix memory leak
If migrate_prep is failed, new variable is leaked. This patch fixes it.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/mempolicy.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index d49956d30259..4545d5944243 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1024,7 +1024,7 @@ static long do_mbind(unsigned long start, unsigned long len, err = migrate_prep(); if (err) - return err; + goto mpol_out; } { NODEMASK_SCRATCH(scratch); @@ -1039,10 +1039,9 @@ static long do_mbind(unsigned long start, unsigned long len, err = -ENOMEM; NODEMASK_SCRATCH_FREE(scratch); } - if (err) { - mpol_put(new); - return err; - } + if (err) + goto mpol_out; + vma = check_range(mm, start, end, nmask, flags | MPOL_MF_INVERT, &pagelist); @@ -1062,6 +1061,7 @@ static long do_mbind(unsigned long start, unsigned long len, putback_lru_pages(&pagelist); up_write(&mm->mmap_sem); + mpol_out: mpol_put(new); return err; } |