Re: [PATCH] btrfs: fix memory leak on error path in btrfs_get_acl()

From: Mariusz Kozlowski
Date: Thu Dec 16 2010 - 00:56:48 EST


On Wed, Dec 15, 2010 at 11:49:39PM +0100, Miguel Ojeda wrote:
> On Wed, Dec 15, 2010 at 10:57 PM, Mariusz Kozlowski <mk@xxxxxxxxxxxx> wrote:
> > If posix_acl_from_xattr() fails we leak memory stored in 'value'.
> >
> > Signed-off-by: Mariusz Kozlowski <mk@xxxxxxxxxxxx>
> > ---
> >  fs/btrfs/acl.c |    1 +
> >  1 files changed, 1 insertions(+), 0 deletions(-)
> >
> > diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
> > index 2222d16..11c9561 100644
> > --- a/fs/btrfs/acl.c
> > +++ b/fs/btrfs/acl.c
> > @@ -61,6 +61,7 @@ static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
> >                if (size > 0) {
> >                        acl = posix_acl_from_xattr(value, size);
> >                        if (IS_ERR(acl))
> > +                               kfree(value);
>
> Be careful with the evil { }

Dang. Too much python recently i guess. Will send v2 shortly.

Thanks.

> >                                return acl;
> >                        set_cached_acl(inode, type, acl);
> >                }
> > --
> > 1.7.0.4
> >
> > --
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--
Mariusz Kozlowski
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