On Wed, Oct 27, 2010 at 11:19:04PM +0200, Dan Carpenter wrote:
> The original code would oops if this were called from nfsd4_setattr()
> because "filpp" is NULL.
I believe it's impossible to reach this case: we never give out write
delegations, so the preceding nfs4_check_delegmode will always fail when
called from setattr.
We should do this anyway, but I'll probably queue it up for the next
merge window.
--b.
>
> Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
>
> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> index 9019e8e..e044d04 100644
> --- a/fs/nfsd/nfs4state.c
> +++ b/fs/nfsd/nfs4state.c
> @@ -3083,9 +3083,10 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
> if (status)
> goto out;
> renew_client(dp->dl_client);
> - if (filpp)
> + if (filpp) {
> *filpp = find_readable_file(dp->dl_file);
> - BUG_ON(!*filpp);
> + BUG_ON(!*filpp);
> + }
> } else { /* open or lock stateid */
> stp = find_stateid(stateid, flags);
> if (!stp)
--
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