On Tue, Jun 01, 2021 at 12:25:40PM +0300, Dan Carpenter wrote: > The alloc_migrate_huge_page() doesn't return error pointers, it returns > NULL. Hi Dan, I'm trying to start using smatch. Is this in the warns report? Wasn't able to find using smatch_scripts/kchecker mm/hugetlb.c (T_T) > > Fixes: ab45bc8b5910 ("mm, hugetlb: fix resv_huge_pages underflow on UFFDIO_COPY") > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> > --- > mm/hugetlb.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index 69a4b551c157..3221c94b4749 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -5103,7 +5103,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, > */ > page = alloc_migrate_huge_page(h, gfp_mask, node, > nodemask); > - if (IS_ERR(page)) { > + if (!page) { > ret = -ENOMEM; > goto out; > } > -- > 2.30.2 >