[lustre-devel] [PATCH] staging: lustre: Fix sparse, using plain integer as NULL pointer in lov_object_fiemap()

[Joe Perches <joe@perches.com>]

On Wed, 2017-12-06 at 09:53 +0100, gregkh at linuxfoundation.org wrote:
> On Mon, Dec 04, 2017 at 12:44:32PM +0200, Andrii Vladyka wrote:
> > Change 0 to NULL in lov_object_fiemap() in order to fix warning produced by
> > sparse
> > 
> > Signed-off-by: Andrii Vladyka <tulup@mail.ru>
> > Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
> > ---
> > 
> > diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
> > index 105b707..897cf2c 100644
> > --- a/drivers/staging/lustre/lustre/lov/lov_object.c
> > +++ b/drivers/staging/lustre/lustre/lov/lov_object.c
> > @@ -1335,7 +1335,7 @@ static int lov_object_fiemap(const struct lu_env *env, struct cl_object *obj,
> >  	int rc = 0;
> >  	int cur_stripe;
> >  	int stripe_count;
> > -	struct fiemap_state fs = { 0 };
> > +	struct fiemap_state fs = { NULL };
> >  	lsm = lov_lsm_addref(cl2lov(obj));
> >  	if (!lsm)
> 
> Patch is corrupted, and can not apply, please fix up your email client
> and try it again.

It would be better to use {} to clear the struct
rather than any member initialization.