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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2009-10-26 16:49:59 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-11-09 16:22:11 -0800 |
| commit | 7b6f062f8c8252063ab1bf8c2c6efc9bbcaeedcc (patch) | |
| tree | d2b7d93ba922b3fc78e54d3dc9667cc845818bba /mm | |
| parent | 71ad01d06d0803e034dae2fcd33aeb5e9662c046 (diff) | |
| download | lwn-7b6f062f8c8252063ab1bf8c2c6efc9bbcaeedcc.tar.gz lwn-7b6f062f8c8252063ab1bf8c2c6efc9bbcaeedcc.zip | |
do_mbind(): fix memory leak
commit b05ca7385a2848abdc72051f832722641daed8b0 upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm')
| -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; } |