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do_mbind(): fix memory leak

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If migrate_prep is failed, new variable is leaked.  This patch fixes it.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2009-10-26 16:49:59 -07:00 • committed by Linus Torvalds
commit b05ca7385a
1 changed files with 5 additions and 5 deletions
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10
mm/mempolicy.c
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@ -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;
}