On Thu, Jan 28, 2021 at 03:05:06PM +0000, Chuck Lever wrote:
> Hi Colin-
>
> > On Jan 28, 2021, at 9:49 AM, Colin King <colin.king@xxxxxxxxxxxxx> wrote:
> >
> > From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> >
> > The call to find_stateid_by_type is setting the return value in *stid
> > yet the NULL check of the return is checking stid instead of *stid.
> > Fix this by adding in the missing pointer * operator.
> >
> > Addresses-Coverity: ("Dereference before null check")
> > Fixes: 6cdaa72d4dde ("nfsd: find_cpntf_state cleanup")
> > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Thanks for your patch. I've committed it to the for-next branch at
>
> git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git
>
> in preparation for the v5.12 merge window, with the following changes:
>
> - ^statid^stateid
> - Fixes: tag removed, since no stable backport is necessary
Please keep the "Fixes:" tag! It's still very useful information. For
example, if someone needs to backport the original patch, this is a
reminder they'll want this one as well.
(Of course, if you fold this patch into the earlier one instead, that's
a different situation.)
--b.
> The commit you are fixing has not been merged upstream yet.
>
>
> > ---
> > fs/nfsd/nfs4state.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> > index f554e3480bb1..423fd6683f3a 100644
> > --- a/fs/nfsd/nfs4state.c
> > +++ b/fs/nfsd/nfs4state.c
> > @@ -5824,7 +5824,7 @@ static __be32 find_cpntf_state(struct nfsd_net *nn, stateid_t *st,
> >
> > *stid = find_stateid_by_type(found, &cps->cp_p_stateid,
> > NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID);
> > - if (stid)
> > + if (*stid)
> > status = nfs_ok;
> > else
> > status = nfserr_bad_stateid;
> > --
> > 2.29.2
> >
>
> --
> Chuck Lever
>
>
